A constitution is a legal document 

A. drawn up by lawyers
B. enacted by military decrees
C. forming the basis upon which a government rules the country
D. only likely to succeed in countries where there is union government

Correct Answer:

Option C = forming the basis upon which a government rules the country

Explanation

A constitution is defined as a body of agreed rules and principles stating how the powers of governing a country are given and how these powers are to be exercised.

Option C is the correct answer.