Question

During which period did T. Rex reign?

A. Permian
B. Triassic
C. Jurassic
D. Cretaceous

Answer 1

the answer you are looking for is D.

Explanation: you see, the cretaceous period was 65 to 67 million years ago and that was the same time period for the trex to have been roaming around in.

Answer 2

The answer's D. Cretaceous.