A
Step-by-step explanation:
The total number of candy bags sold = 8 bags
1 bag ------- 1/2 pound
2 bags ------- 1 pound
2 bags --------- 3/2 pounds
2 bags --------- 2 pounds
1 bag ----------2 1/2 pounds
The three lightest bags are, 1/2, 1, and 1 1/2
Total weights = (1 * 1/2) + (2 * 1 ) + (2 * 3/2)
Total weights = 1/2 + 2 + 3
Total weight = 1/2 + 5
Total weights = 5 1/2 pounds