A contract will be unenforceable if A. one party to the contract feels he or she has been taken advantage of
B. a statute declares such a contract
C. illegal performance becomes difficult
D. public authorities voice disapproval of the contract
E. the parties involved believe the contract to be illegal

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.

answer; interactionist persprctive;

the secretary of defense is the principal defense policy advisor to the president. under the direction of the president, the secretary exercises authority, direction, and control over the department of defense.

as you did not provide any choices for me to choose from to give you a direct answer, this is the only information i can provide.