The exterior angles of triangle UVW are ∠X, ∠Y, and ∠Z, and they are adjacent to ∠U, ∠V, and ∠W, respectively.

If m∠V is 95°, and m∠Z is 129°, what is m∠U?
A.
129
B.
95°
C.
51°
D.
34°