# AB and AC are two chords of a circle. The tangents at B and C meet at P

AB and AC are two chords of a circle. The tangents at B and C meet at P. If ∠BAC=54^{o}, then the measure of ∠BPC is

(a) 36^{o}

(b) 54^{o}

(c) 72^{o}

(d) 108^{o}

^{o}, then the measure of ∠BPC is

(a) 36^{o}

(b) 54^{o}

(c) 72^{o}

(d) 108^{o}