Think you can refit the chain, please?

Edwin Yes, I think so. I have done it before
Thanks so much.
Edwin No problem.
1. Who is Erin?
A. Edwin's cousin.
C Edwin's sister
B. Edwin's aunt.
D. Edwin's friend
2. What is Erlin's problem?
A. Her bicycle's chain has loosened.
B. She asks Edwin to give her a ride.
C. She cannot repair Edwin's bicycle.
She would Hke to use Edwin's bicycle​

Think you can refit the chain, please?