Why were the other scientists reluctant to accept Alfred Wegener's Continental Drift hypothesis in 1917? A
Wegner had not compiled enough evidence.
B
Wegner was not a trained geologist.
C
Wegener had no compelling mechanism to explain what would cause the continents to move.
D
Wegner died before he was able to share his evidence.

Correct answer is Wegener had no compelling mechanism to explain what would cause the continents to move.

Explanation:

A is not correct as through his researches he presented his theory to other scientist.

B is not correct as Wegener was very educated, and was even even working as a professor at University.

C is correct that although he presented his theory, he couldn't explain totally how it happened.

D is not correct as during his lifetime his theory wasn't widely accepted. That happened 20 years after his death.