Reading Comprehension

One clear advantage of selling goods online is that smaller markets can be served without the seller needing to invest in heavy inventory costs. Recordings of classical music, for example, are increasingly hard to find at the larger music chains, where only a handful of recordings sell well enough to make the inventory costs and use of shelf space worthwhile, but the aficionado can now locate nearly any classical CD in print on the Internet. In addition, forward-thinking artists without national reputations have made their music available on personal sites or through services that provide the musicians a more generous share of profits than that offered by the large record labels. For some, this has resulted in increased sales volume, greater return on investment, greater control of product, and a more direct connection with an eager market base. Major orchestras and record labels have taken note, and have created Web sites where one can purchase individual tracks, full CDs, archival recordings, and even music exclusively made available for online downloads. Some symphony orchestras now include, with the price of admission to a concert, the right to download a recording of the concert afterward. Other services allow the listener unlimited streaming or downloading for a
monthly fee.

The question remains as to whether classical music will remain at the periphery of the online market, just as it is in the big retail chains. The short answer is most likely yes; classical music is now just one more niche market, albeit one with a particularly long and distinguished past. Cultural factors-most notably television-have been at work for some time now, creating a limited audience for music that requires sustained critical
listening. However, the digital economy has ensured two important factors. First, for those with an interest, an impressively wide range of classical music will be available for some time to come. Second, motivated new artists can earn enough to continue to produce new recordings.

It can be inferred from the passage that one factor that has led to the marginalizing of classical music in retail stores is that _______.
(A) classical music must compete with a wide range of other niche market recordings
(B) physical space is needed for better-selling recordings
(C) major orchestras have had a difficult time selling tickets to live performances
(D) inventory costs of classical music recordings tend to be higher than those associated with popular music
(E) recordings are displayed in a way that is disadvantageous to the consumer who is interested in a recording that is not a big seller

I agree B can be answer but going by below content of passage

Recordings of classical music are increasingly hard to find at the larger music chains, where only a handful of recordings sell well enough to make the inventory costs and use of shelf space worthwhile,

This can mean that shops will contain only those music CD's which sale well and bring profit for the keeper.
cant we say that classical music are competing with other niche market recordings in finding the space in shop.
plz explain why A is wrong.