In $1891,$ when drinking alcohol, using tobacco, and gambling were legal even for young teenagers, a $15-$year old named William accepted his uncle's offer to pay him $$5,000$ for giving up alcohol, tobacco, and gambling until the age of $21.$ For the next six years, William did as he promised. After he turned $21,$ however, William's uncle did not. William's uncle refused to pay William even one dollar, let alone $$5,000.$ If William sues his uncle to recover the $$5,000,$ what will be the result?

a$.$ William will lose because the contract between William and his uncle is void due to the fact that William was only $15$ years old at the time the agreement was formed.

b$.$ William will lose because William gave no consideration for his uncle's promise, making their agreement unenforceable.

c$.$ William will win because a contract was formed upon offer and acceptance, and both parties to the agreement gave valid consideration.

d$.$ William will lose because the contract between William and his uncle did not require William to do anything for his uncle; rather, it merely required William to refrain from doing something he had a right to do$,$ which is not sufficient consideration on his part.