Consider the following pairs:
         Name :                      Formula
1] Propan-2-ol : $$ CH_{3}CH_{2} CH_{2} CH_{2}CHO $$
2] 1-Bromo-2,2-dimethylpropane :$$ (CH_{3})_{3}CCH_{2}Br $$
3] Methanal : $$HCHO$$
4] Pentanal : $$CH_{3}-CH(OH)-CH_{3}$$
Which of the above pairs are correctly matched?

A

2 and 3 only

B

1 and 3 only

C

3 and 4 only

D

2 , 3 and 4 only