Question

Dolphins are carnivores. They mainly eat fish and squid.

Choose the correct version of the combined sentence.

Dolphins are carnivores; they mainly eat fish and squid.
Dolphins are carnivores they mainly eat fish and squid
Dolphins are carnivores, they mainly; eat fish and squid.
Dolphins are carnivores, they mainly, eat fish and squid.

Answer 1

Dolphins are carnivores; they mainly eat fish and squid.

Answer 2

The first one is correct. When you use ; in a sentence, it means that the first half could be a grammatically correct sentence without the second half. And the second half depends on the first half to be correct.

I hope this helped!!