2011 CSAT, all questionsPassage · as printed by UPSC 

UPSC Prelims 2011 · CSAT
Question 33: Data Interpretation

Which region of the curve indicates that the treatment yielded effective relief ?

aC
bD
cE
dThe curve does not indicate the treatment
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.