Bethany's grandmother promised to give her a car when she turned $21$ if Bethany agreed not to drink alcohol or smoke cigarettes until that date. Would this be a contract with consideration?a$.$ Yes, because her grandmother is concerned for her safety.b$.$ No$,$ because forbearance never qualifies as consideration.c$.$ Yes, because a gift is an enforceable contract.d$.$ No$,$ because it is already illegal for Bethany to drink until she turns $21.$