Hi,
(a) They decided to sell as much food as possible to earn money.
(b) They donated the money they earned, RM5000, to the orphanage.
(c) They donated a cheque for RM5000 to the "Hope Orphanage".
(d) Ali's parents prepared many types of food for charity.
Ps: What do we write , "parent's One parent
/ parents' signature" More than one parent
Best wishes, Clive