Exhibit 21-3 ​

Exhibit 21-3
​

-Refer to Exhibit 21-3. The marginal cost figures in blanks (F) and (G) , respectively, are

A) $2.00 and $1.33.
B) $2.00 and $1.60.
C) $20.00 and $13.33.
D) $2.00 and $2.66.
E) none of the above