refers to a condition that requires the occurrence of an event before a party is obligated to perform a duty under a contract.

a. Condition Precedent
b. Condition subsequent
c. Concurrent condition
d. Implied condition

Option A                      

Explanation:

A precedent situation is an incident or state of the world that is necessary before anything else happens. In property law, a precedence situation is an circumstance which will take place before payment under an agreement is overdue, that is. before any contractual obligation occurs, unless its non-occurrence is absolved. Throughout programming, a little while loop establishes the reality of a sentence as just a precedent requirement for running a specified subprogram or any other fragment of code.

answer:

dont quote me but i think its d

explanation: