Option A is the correct answer.
Explanation:
We have
1 pound = 16 ounces
12 pound = 12 x 16 ounces = 192 ounces
A shopper bought a 12- pound bag of oranges for 18.75.
That is
Price of 12 pounds = 18.75
Price of 192 ounces = 18.75

Option A is the correct answer.