In 1971, a new Article 31C inserted in the Constitution which provides that a law giving effect to the Directive Principles specified in Article 39 (b) and (c) will not be void on the ground of contravention of Article 14, 19 or 31. This insertion was made by which of the following Amendments?

A. Twenty-sixth

B. Twenty-fifth

C. Twenty-fourth

D. Twenty-one

Answer: Option B