To solve this question, break down the steps.
1. Find the number of black bears, this is 2x the number of brown bears.
Here it would be 2(32) = 64.
Add the number of bears altogether - 64 + 32 = 96.
2. Find half of the total number of brown bears, 1/2(32) = 16. 16 brown bears left.
96 - 16 = 80.
The correct answer is C. 80.