Allen Is Harry's Older Brother

Multiple Choice

Allen is Harry's older brother.Yesterday,Allen asked Harry,an experienced plumber,to fix a leaky pipe below the sink of Allen's main floor washroom.Knowing that Allan had just lost his job and wanting to help him out,Harry did the work,which took him almost half a day to complete.The next day,Harry and Allen had an argument,and in anger Harry told Allen he expected to be paid for his work.In this situation,

A) the law will imply a promise by Allen to pay Harry because it deals with supply of services.
B) the law will imply a promise by Allen to pay Harry because Allen has been unjustly enriched.
C) the law will imply a promise by Allen to pay Harry because they are family members.
D) the law will not imply a promise by Allen to pay Harry because they are family members.
E) the law will imply a promise by Allen to pay Harry because Harry performed services for Allen.