In this section each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled P, Q, R and S. You are required to find the proper sequence of the four sentences
S1: A common disease of the eye is conjunctivitis or 'pink eye', which often occurs in school-children.
S6: Students with this condition should be sent to the doctor.
P: This disease spreads rapidly among school-children.
Q : A white discharge also appears in the corners of the eyes.
R : One or both eyeballs turn quite red and have a feeling of irritation.
S : This discharge forms a crust which can often be seen in the morning after the eyes have been shut all night.
The proper sequence should be.

Options

A. PS QR
B. RS Q P
C. R Q SP
D. Q SR P