If Chad approaches Felicia and agrees to pay her $$40,000$ not to open a competing restaurant near Chad's Cafe, this agreement will likely be

a$.$

unenforceable because it is against public policy.

b$.$

$$enforceable because opening up a store is an action that Felicia has the legal right to do$.$

c$.$

unenforceable because it is against the law.

d$.$

$$enforceable since $$40,000$ is a lot of money.