# Let C be a point on a straight line AB, Circles are drawn with diameters AC and AB. Let P be any point on the circumference of the circle with diameter AB. If AP meets other circle at Q, then â€“ A.QC â•‘ PB B. QC is never parallel to PB C.QC = $1\over 2$ PB D. QC â•‘ PB and QC =$1\over 2$ PB

 [ A ]    a [ B ]    b [ C ]    c [ D ]    d
 Answer : Option A Explanation :