Mr. and Mrs. Cheaps do not have an express contract with the gas company. Nonetheless, they use gas to heat their home. If the gas company sues

a.

They will have to pay unless Mr. Cheaps is an employee of the gas company.

b.

They will not have to pay because they did not have an express contract with the gas company.

c.

They will have to pay because they knowingly received a benefit.

d.

They will not have to pay because they did not communicate acceptance of the gas company's offe