Answer:
b). Has no effect on the contract.
Step-by-step explanation:
The decision to substitute the bricks will not affect the contract. Although Bob seems to have deviated from the terms of the contract, the deviations are immaterial in the contract implementation.
HighQual Bricks are not available, and the substitutes are of the same price and quality. The decision thus will not harm Phils' warehouse structure in any way. The decision will save time as the project will not stall due to insufficient bricks. However, Bob will not make any further claims as the new bricks are of the price.