Question

During the past 100,000 years, there were at least ___ glacial periods. a. 4 c. 20 b. 12 d. 60 Please select the best answer from the choices provided A B C D

Answer 1

D. 60

Step-by-step explanation:

During the past 100,000 years, there were at least 60 glacial periods.

Answer 2

The answer is C I think of this question which is C. 20