Answer:
The answer is True.
Step-by-step explanation:
Tortious interference occurs with contracts rights when a party convinces another party to breach his/her contract with a third party , using blackmail, influence, etc or when someone knowingly interferes with a contractors obligations to a third party thereby preventing the client or customer from receiving the goods or services promised. This kind of tort may occur when one party knowingly takes an action that causes a second party not to enter into a business relationship with a third party that otherwise would probably have occurred.
In this question, since X knows that Y has already offered to sell wheat to Z at a certain price before going behind Y to relate with Z on selling to him at a lower price, then X is liable to Y for the tort of interference with contractual relations.