3. Which choice below correctly identifies the weight of a fetus at each trimester of pregnancy? A. first trimester: 1 oz; second trimester: 1 lb; third trimester: 6.5-10 lbs
B. first trimester: 1 oz; second trimester: 3 lbs; third trimester: 6.5-10 lbs
C. first trimester: 1 g; second trimester: 1 oz; third trimester: 6.5-10 lbs
D. first trimester: 1 lb; second trimester: 2 lbs; third trimester: 6.5-10 lbs