Which statement verifies that triangle mathrm cap w cap x cap y is a right triangle?
A
The slopes of line segment mathrm cap x cap y and line segment mathrm cap w cap x have opposite signs.B
The slopes of line segment mathrm cap w cap x and line segment mathrm cap x cap y are opposite reciprocals.C
The slopes of line segment mathrm cap w cap x and line segment mathrm cap y cap w are opposite reciprocals.D
The slopes of line segment mathrm cap x cap y and line segment mathrm cap y cap w have the same signs.