A Diet Requires at Least 26 Units of Vitamin C $\quad 7$

Multiple Choice

A diet requires at least 26 units of vitamin C and at least 31 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) $\quad 7$ grams of $A$ and 5 grams of B: 62 cents
B) 5 grams of A and 2 grams of B: 32 cents
C) 5 grams of A and 7 grams of B: 58 cents
D) $\quad 3$ grams of $A$ and 9 grams of B: 54 cents
E) 1 gram of $A$ and 5 grams of $B : 34$ cents