Mutual fund having billions of dollars in assets

A mutual fund having billions of dollars in assets will typically invest that money in hundreds of companies, rarely holding more than one percent of the shares of any particular corporation.

A) companies, rarely holding more than one percent
B) companies, and it is rare to hold at least one percent or more
C) companies and rarely do they hold more than one percent
D) companies, so that they rarely hold more than one percent
E) companies; rarely do they hold one percent or more

Source: Official Guide