In the given compound

The correct order of reactivity of H atoms towards free radical substitution is
(1) 2 > 4 > 6 > 5 > 3 > 1
(2) 2 > 4 > 5 > 6 > 1 > 3
(3) 1 > 4 > 2 > 5 > 6 > 3
(4) 3 > 1 > 5 > 6 > 4 > 2