High, normal, and low specify share values with a __:__:

Shares are typically specified as high, normal, or low. High, normal, and low specify share values with a __:__:__ ratio.

A.
4:2:1

B.
3:2:1

C.
1:2:4

D.
8:4:2

Explanation:

Shares are typically specified as high, normal, or low. High, normal, and low specify share values with a 4:2:1 ratio.