The correct statements about the following conformational equilibrium of ketone are
I. A predominates in DMSO due to opposing dipole interaction
II. B predominates in DMSO due to intramolecular hydrogen bonding
III. A predominates in isooctane due to opposing dipole interaction
IV. B predominates in isooctane due to intramolecular hydrogen bonding
1
I and III
2
I and IV
3
II and III
4
II and IV