Consider the following pairs:
Name : Formula
1) $$2-Chlorobutane : CH3CH2CH(Cl)CH3$$
2) $$Pentan-2-one : (CH3)2CHCOCH(CH3)2$$
3) $$Prop-2-enal : CH2CHCHO$$
4) $$2,4-Dimethylpentan-3-one : CH3COCH2CH2CH3$$
Which of the above pairs are correctly matched?

A

1 and 3 only

B

1 and 4 only

C

3 and 4 only

D

2 and 3 only