Answer:
a. determine a reasonable price for the cement and insert it into the contract.
Step-by-step explanation:
Since in the question it is mentioned that the amy & builders corporation would entered into a contract where amy agrees to deliver the cement at the construction site. At the same time they deny to include the price in the agreement. So here the court would say that calculate the price for the cement and the same would be involved in the contract as without price the contract is not valid
Hence, the option a is correct