Henry Promised to Gift Jake $250 for His 25th Birthday

Henry promised to gift Jake $250 for his 25th birthday. However, on Jake's 25th birthday, Henry refuses payment and denies offering any money. If Jake sues henry for specific performance, the court is likely to rule that:

A) Henry lacks the legal capacity to enter into a contract.
B) Jake didn't offer any consideration to Henry and hence the contract cannot be enforced.
C) Jake was a minor at the time of the agreement and hence the contract is void.
D) Henry must fulfill his obligation according to the "mutual assent rule."