Let ˆ a and ˆ b be two unit vectors such that the angle between them is π/4 . If θ is the angel between the vectors ( ˆ a + ˆ b ) and ( ˆ a +2 ˆ b +2( ˆ a × ˆ b )) , then the value of 164 cos2 q is equal to :
(A) 90 + 27√2
(B) 45 + 18√2
(C) 90 + 3√2
(D) 54 + 90√2