Answer:
Bilateral and unilateral contract
Step-by-step explanation:
A UNILATERAL CONTRACT can be defined as the type of contract in which two people or two parties enter into agreement in which the offeree promises to pay the person in which they enter into contract a specific amount after the occurrence of a specified act because the promisor or the offeror makes an open promise to provide something in exchange for performance carried out by the second person.
BILATERAL CONTRACT can be defined as the type of contract in which both the two people or the two parties that is the promisor and the promisee knowingly and willingly enter into an agreement in which both parties make a promise, and each is said to be obligated to fulfill the promise made.
Therefore based on the above scenario the
two types of contracts are involved is BILATERAL AND UNILATERAL CONTRACT