Final answer:
Unbalancing the bid is the technique used to manipulate a unit-price contract.
Step-by-step explanation:
The correct technique to manipulate a unit-price contract is Unbalancing the bid (option B).
Unbalancing the bid involves allocating higher prices to specific items or quantities in order to favorably shift the cost and profit structure of the contract. This can be done by lowering the prices of some items or quantities to attract the client's attention while compensating for it by increasing the prices of other items or quantities.
For example, in a construction project, if a contractor is willing to reduce the price for labor costs, they may increase the price for materials to balance the overall bid and maintain profitability. Unbalancing the bid involves allocating higher prices to specific items or quantities in order to favorably shift the cost and profit structure of the contract. This can be done by lowering the prices of some items or quantities to attract the client's attention while compensating for it by increasing the prices of other items or quantities.