Triangle ABC with vertices at A(3, 2), B(2, −1), C(−2, 1) is dilated using a scale factor of 3.5 to create triangle A′B′C′. Determine the vertex of point C′.

C′(−7, 1)
C′(−7, 3.5)
C′(−2, 3.5)
C′(7, −3.5)