Builder has a contract with Owner to build a house for $1 million according to a set of specifications. Builder mistakenly uses a different kitchen fixture than what was specified; however, the problem can be remedied for $100. Owner asserts that Builder has breached and terminates the contract, refusing to pay the unpaid balance due, which is $100,000. Has Builder breached to the extent that Owner may terminate the agreement? Explain your reasoning.

This is for my contracts law class.