Answer:
Option C
Explanation:
Line 'l' and 'm' are parallel and a transversal line 't' intersects these lines.
∠1 ≅ ∠4 [Vertically opposite angles]
∠1 ≅ ∠5 [Corresponding angles]
∠1 ≅ ∠8 [Alternate exterior angles]
∠1 ≠ ∠6 [No property of the congruence is followed]
Option C will be the correct option.