Given below are four events connected with India's struggle for independence. Select their correct chronological order by using the codes given below the events:

1. Second Round Table Conference.
2. Karachi Session of Indian National Congress.
3. Execution of Bhagat Singh.
4. Gandhi-Irwin Pact.

Codes:

A) 1,2,3,4

B) 2,1,3,4

C) 4,3,2,1

D) 2,4,3,1

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2009 (GS Paper I)