Solve
-Karl Mason Sold $\frac{1}{3}$ Gross of Data Disks on Monday $\frac{7}{12}$

Multiple Choice

Solve.
-Karl Mason sold $\frac{1}{3}$ gross of data disks on Monday, $\frac{7}{12}$ gross on Tuesday, and $\frac{4}{6}$ gross on Wednesday. What was the total amount of data disks sold?

A) $\frac{19}{12}$ gross
B) 1 gross
C) $\frac{19}{6}$ gross
D) $\frac{13}{3}$ gross