Question

the angle of 12° is a(n)
both
angle of depression
neither
angle of elevation

Explanation:

The angle of elevation is the angle between the horizontal line from the observer (sailboat) and the line of sight to an object above the horizontal level (lighthouse). Here, the 12° angle is formed between the horizontal from the sailboat and the line to the lighthouse top, so it is an angle of elevation.

Answer:

D. angle of elevation