The origin of Directive Principles of State Policy can be traced to which of the following?

Correct option is D

(d) Karachi Resolution
The Directive Principles of State Policy were inspired by the Irish Constitution and the philosophical underpinnings were outlined in the Karachi Resolution of 1931 by the Indian National Congress.
Karachi Session:
From March 26 to March 31, 1931, Karachi, which was then a part of British India (now in Pakistan), hosted the Indian National Congress's Karachi Session. The meeting had a significant impact on how the Indian independence movement developed politically. Karachi Session of Congress in 1931 was presided by Sardar Vallabhbhai Patel