A(n) is one that appears to be an agreement but lacks an essential requirement for validity and enforceability.

A void contract

Explanation:

A void contract is one that appears to be an agreement but lacks an essential requirement for validity and enforceability. A void contract is usually illegitimate contract which cannot be enforceable. For example, an agreement between a drug trafficker and his clients is a void contract because it is illegal.

c. reserves power to the states and people

answer; the miracles;