Match the following:
a) Butanol — i) CH3 -CH2 -CH2 -CH2 -COOH
b) Pentanoic acid — ii) CH3– CH2 – CH2– CH2 – CH2 – CHO
c) Propanone — iii) CH3 -CH2 -CH2 -CH2 -OH
d) Hexanal — iv) CH3COCH3
A) a → i,b → ii,c → iii,d → iv
B) a → iv,b → iii,c → ii,d → i
C) a → iii,b → i,c → iv,d → ii
D) a → iv,b → ii,c → iii,d → i