Problem: Do "Bill" and "his" point to the same thing in the following sentence?

Dan took the rear seat while Bill claimed the front because *his* "Dibs!" was slow.

OPTIONS:
- no
- yes
****
A: no

Problem: Do "The sculpture" and "it" point to the same thing in the following sentence?

The sculpture rolled off the shelf because *it* wasn't anchored.

OPTIONS:
- no
- yes
****
A: yes

Problem: Do "arm" and "it" point to the same thing in the following sentence?

I asked Dave to get me my sweater from the other side of the yacht . While he was gone, I rested my arm on the rail over there and suddenly *it* gave way.

OPTIONS:
- no
- yes
****
A: no

Problem: Do "Dan" and "his" point to the same thing in the following sentence?

Dan took the rear seat while Bill claimed the front because *his* "Dibs!" was quicker.

OPTIONS:
- no
- yes
****
A:
no