There are three different types of constraints typically captured in object-oriented design: preconditions, postconditions, and

Invariant

Explanation:In object oriented design ,there are three type of condition which are as follows:-

Pre-condition:- this situation implies that condition must be true before the function is being called.Post-condition:- is the situation in which the the condition mys be true after the function is being called.Invariant:-is the situation where the condition must be true throughout the time period or at all times.

Ithink it would be c (a word object) not 100% sure though

If you go to ask a question and say ask, there should be something that looks like this