Answer: Neither Mary nor Sharon can claim breach of contract.
Explanation:
The both parties of the contract are not guilty of a breach in contract because of the conditions contained within the contract was not broken. Sharon gave the condition that she would check the lottery ticket if she is chanced, therefore if she doesn't check the ticket she wasn't chanced. Also Mary only promised to buy the shoe for Sharon only when she had checked the ticket, which Sharon failed to do.
