Select with the help of the codes given below, the components of Green Revolution:

1. High yielding variety seeds
2. Irrigation
3. Rural Electrification
4. Rural roads and marketing

A) 1 and 2 only

B) 1, 2 and 3 only

C) 1, 2 and 4 only

D) All the four

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2008 (GS Paper I)