A newborn child is experiencing severe heart problems and has abnormally short limbs. What could have affected cell differentiation during embryonic growth?

A. Certain antibiotics

B. Radiation

C. Alcohol

D. Carbon monoxide

I think the correct answer is option B. A newborn child is experiencing severe heart problems and has abnormally short limbs is caused by exposure to radiation. Exposure to this causes disturbance to the early development of the baby.