Final answer:
Option A). True. Dizygotic (DZ) twins, also known as fraternal twins, can run in families due to genetic factors. The likelihood of having DZ twins varies across different populations. DZ twins result from the fertilization of two separate eggs by two separate sperm.
Step-by-step explanation:
Fraternal twins, or dizygotic (DZ) twins, can occur in families. This implies that an individual is more likely to have DZ twins themselves if they have a family history of having them. Genetic factors affect the probability of having DZ twins, and the likelihood varies among populations. DZ twins are no more alike than siblings born at different times because they are the product of two distinct eggs fertilizing two separate sperm. Hence. the given statement is true.