2011 CSAT, all questionsPassage-II · as printed by UPSC 
UPSC Prelims 2011 · CSAT
Question 69: Reading Comprehension

His toothbrush is finally
ain his bag
bin his bed
cin his handkerchief
dlost
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.