2011 CSAT, all questionsPassage-I · as printed by UPSC 
UPSC Prelims 2011 · CSAT
Question 64: Reading Comprehension

When the night fell, he slept
ain the open field
bunder a pile of dry grass
cin a farmer’s cottage
dunder a tree
UPSC published no Prelims answer keys before 2012.
Source: UPSC, Civil Services (Preliminary) Examination 2011, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.