The correct option is C 6
If the terminal group are same in polyene and the number of double bons is odd then, the number of geometrical isomer
=2n−1+2n+12−1
=23−1+23+12−1
=22+21
=4+2
=6
They are : (1) cis, cis, cis
(2) trans, trans, trans
(3) cis, trans, trans
(4) cis, trans, cis
(5) trans, cis, trans
(6) cis, cis, trans