A Music Company Expects That the Monthly Sales S

Multiple Choice

A music company expects that the monthly sales S , in thousands, of a new music CD it has produced will be closely approximated by where t is the number of months after the CD is released. Use S to predict the month in which sales are expected to reach a maximum.

A) Sales will reach a maximum in the fifth month.
B) Sales will reach a maximum in the tenth month.
C) Sales will reach a maximum in the third month.
D) Sales will reach a maximum in the eleventh month.
E) Sales will reach a maximum in the sixth month.