If a gauge is installed perpendicular to the slope, its measurement is reduced by multiplying
(A) Sine of the angle of inclination with vertical
(B) Cosine of the angle of inclination with vertical
(C) Tangent of the angle of inclination with vertical
(D) Calibration coefficient of the gauge
(A) Sine of the angle of inclination with vertical
(B) Cosine of the angle of inclination with vertical
(C) Tangent of the angle of inclination with vertical
(D) Calibration coefficient of the gauge