question_answer

In the figure given below PQ is the diametre of the circle with centre O. If PT and QS are the perpendicular to the line I, and QS meet the circle at point R then which one of the following is correct?

A)  \[\Delta \,PRT\] is acute angled triangle

B)  \[TP=RS\]

C)  Quadrilateral RPST is a square

D)  \[\angle \,SRP\] is obtuse angle

E)  None of these