which one of the followings is unlikely to be a declaration of will?

A. I want to abandon my property

B. I want to make a contract

C. I want to marry you

D. I want to visit Beijing

Mr. A, Mr. B and Mr. C owe Mr. D 3000 RMB. Mr. A, Mr. B and Mr. C are joint liable for the debt. Which one of the followings is correct?

A. Mr. D can ask only all of debtors to pay the money.

B. Mr. D can not ask Mr. A to pay only 1000 RMB to Mr. D.

C. if Mr. D ask Mr. C to pay 3000 RMB to Mr. D, then Mr. C can not ask Mr. A or Mr. B to pay Mr. C for compensation.

D. if Mr. D ask Mr. C to pay 3000 RMB to Mr. D, then Mr. C can ask Mr. A and Mr. B to pay 2000 RMB to Mr. C.