In a modern democracy, which document sets forth basic rules and procedures for how the people of a country shall be governed?

a. Writ

b. Warrant

c. Decree

d. Constitution

Answer: Option (D) is correct.

Explanation:

A constitution is referred to as a collection of essential principles or written precedents that comprises of the legal standard of a polity, company or other entity, and also tends to commonly explain how that entity should be governed.

When such principles are jotted down into a document or set of document, then these documents embody what is known to be a written constitution; else if these are jotted down into one comprehensive document, then it is known to be a codified constitution.