Alex paid a \(\$12\) fee to receive a \(10\%\) discount off of the list price on all books he bought in a six-month peri

[Gmat_mission]

Alex paid a \(\$12\) fee to receive a \(10\%\) discount off of the list price on all books he bought in a six-month period. Victor paid a \(\$15\) fee to receive a \(15\%\) discount off of the list price on all books he bought in the same period. If each bought books with a total list price of \(b\) during that period and each paid the same net amount, including the discount and the fee, what is \(b ?\)

A. \(\$54\)
B. \(\$60\)
C. \(\$66\)
D. \(\$100\)
E. \(\$120\)

[spoiler]OA=B[/spoiler]

Source: Princeton Review