Answer:
D. They realize that he is the only person who is willing to participate
Explanation: Because he has a lot of determination.
Charlie is chosen for the experiment because he is a hard worker who desperately wants to learn, despite the many setbacks and limitations he encounters. The researchers know this because Ms. Kinnian vouches for him.
Answer:
Lean means to actually rest your physical wait against something, yet in this sentence it means to depend on someone. If this doesn't make sense listen to to song lean on me and you will understand.
Explanation:
D(set in motion, cause to start
