Answer:
B. ∠FBG
Explanation:
When an angle is in the three letter form, the first letter is the first line that forms the angle, the second letter is where the angle is located, and third letter is the line that forms the angle with the first line.
Thus, we can see that line E combines with line F, and the actual angle is located at point B.
The two angles adjacent to ∠EBF are ∠DBE and ∠FBG. Only ∠FBG is one of the answer choices so this is our final answer.