This question is making an appeal to your logic.
Definitions
The hump between A + B and C + D is the activation energy.
The forward activation energy is going from a low of 40 up to a high of 100.
The backward activation energy is going from a low of 20 and a high of 100.
Answer A
Look at the curve. which is higher, 40 or 20? You pick the one that is higher? A must be true.
Answer B
If A is true, B cannot be.
Answer C
C can't be true. Again the diagram holds the answer. The hump starts higher on the side of A+B. It takes less energy to get over the hump on the A+B side than the C + D side.
Answer D
The activation energies are not the same.
