Match List I with List II and select the correct answer using the code given below the Lists

(Person) | (Known As)
A. John C. Mather | 1. Co-founder of Microsoft
B. Michael Griffin | 2. Space Walker
C. Paul G. Allen | 3. Administrator of NASA
D. Piers Sellers | 4. Nobel Prize Winner, 2006 in Physics

The archived UPSC previous questions compilation for 2006–2010 includes the 2007 prelims match-the-following paper and its official answer key. Cross-checking that record shows the correct mapping is A–4, B–3, C–1, D–2, corresponding to option 3 in the given choices. Therefore option 3 is the correct answer for the UPSC 2007 matching question as listed in the archived paper. Given that the primary source is an archival compilation rather than a single authoritative commentary, a manual verification against the original UPSC 2007 printed key is recommended for candidates preparing with high-stakes accuracy.