Can someone help me and show your work!!! PLEASE!!!! 50 POINTS

None of the above
My mom just helped me with it, so I don't know if it's exactly alright. She said it was 20, but theres no 20 as I checked, and I don't know if she didn't right. I got a whole 25.
ANSWERS I THINK
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I think its mainly a,e, or b. Mainly b?
Answer:
It would be b) 16 + 2(pi)
Step-by-step explanation:
Of course, you add all the sides of the rectangle, except for the part that has the semi circle. You find the circumference of the circle, and divide it by half.