The owner of a lost dog posts notices that she will pay $$200$ for its return. Someone who does not know about the reward finds the dog and returns it$.$ The owner.

Select one:

a$.$ must pay the reward due to public policy considerations that encourage the completion of such contracts

b$.$ must pay the reward because the unilateral contract was completed

c$.$ must pay the reward because there was an intent to make a valid offer and to be bound by that offer

d$.$ does not have to pay the reward because the offer was not communicated to the person who found the dog

e$.$ does not have to pay the reward because there was no meeting of the minds