Solve the Problem $T$ Necessary to Make an Enlargement of a Photo Negative Varies

Multiple Choice

Solve the problem.
-The time $T$ necessary to make an enlargement of a photo negative varies directly as the area $A$ of the enlargement. If 120 seconds are required to make a 3-by-5 enlargement, find the time required for a 6 -by-8 enlargement.

A) $336 \mathrm{sec}$
B) $432 \mathrm{sec}$
C) $480 \mathrm{sec}$
D) $384 \mathrm{sec}$