Internal gestation followed by live birth is an evolutionary development most likely because the of the threat of the predators to eat the eggs.
Answer: Option C
Step-by-step explanation:
Reproduction is the activity followed by all organisms in order to maintain their species in this mother earth , as the evolution came by the organisms started to keep their young little ones in an egg inside themselves in order to protect these eggs form the predators that attack the parent and consume the young ones.