Answer:
D. p
Step-by-step explanation:
Here, l, m and o are vertical posts,
⇒ l, m and o are parallel to one another,
Given,
∠10 and ∠16 are alternative interior angles of the parallel lines m and o,
Since, the alternative interior angles on the parallel line is made by a common transversal,
According to the diagram,
Line p makes the angles 10 and 16 on the parallel lines m and o,
⇒ Line p is the common transversal of parallel lines m and o,
Hence, option D is correct.