In a TV game show, 16 boxes-A through P-are grouped as follows

Group L-ABCD

Group 11-EFGHI

Group-JKLM

Group TV-NOP

A participant is asked to open any 12 boxes, with the following restrictions.

At least three boxes are to be opened from group II and at least two boxes are to be opened from each of the other three groups.

E or For I is opened, then both B and C or both J and M should also be opened.

il. If O is opened, neither L nor M should be opened

Iv. If D or E is not opened, then neither N nor M can be opened.

If three boxes from group I or five boxes of group II are opened then not more than two boxes of group il can be opened