The correct option is
C 265∘Construct a line
XOY ∥
AB.
Since
XY ∥
AB,
∠EOY=∠AEO=55∘
(interior opposite angles are equal)
∴∠EOY=55∘
Since
XY ∥
CD,
∠CFO=∠FOY=40∘ (interior opposite angles are equal)
⇒∠EOF=∠EOY+∠FOY
⇒∠EOF=55∘+40∘=95∘
Now, reflex
∠EOF=360∘−95∘=265∘