Which sentence contains a contraction or possessive form incorrectly?

a. we're hoping to have ours ready soon.

b. ella and rob are still working on they're poster.

c. i think it's the best poster in its category.

d. i'll hang my poster on their door.

it makes them feel like hes not confident

hope it !

the answer to the question is a

they fear for their lives

the switch in narration increases the proximity of the narrator to the main character and the reader can perceive information only through the filter of a single character.