A Diet Requires at Least 24 Units of Vitamin C $\quad 3$

Multiple Choice

A diet requires at least 24 units of vitamin C and at least 26 units of vitamin B complex.Two food supplements are available that provide these nutrients, in the amounts and costs shown in the table
Below.How much of each should be used to minimize the cost?

A) $\quad 3$ grams of $A$ and 9 grams of $B : 33$ cents
B) 1 gram of $A$ and 5 grams of B: 27 cents
C) $\quad 5$ grams of $A$ and 7 grams of B: 39 cents
D) $\quad 7$ grams of $A$ and 5 grams of B: 45 cents
E) 5 grams of $A$ and 2 grams of B: 20 cents