The following sentences form a paragraph. They are numbered as P, Q, R and S. These four parts are not given in their proper order. Read the sentences and choose the alternative that arranges them in a correct order.

P. Moreover, online pharmacies might increase self-medications, so they must create awareness of the dangers of self-medication.

Q. Online pharmacies could be a boon for consumers as patients in the remote areas can access and get the medicine he/she wants. 

R. Since most of the online pharmacies aren’t monitored, it could encourage fraudulent practices such as sending wrong dosages or generic variants when the doctor has prescribed a brand name.

S. But lack of oversight, fake medicines, sugar pills, expired medicines, and contaminated medicines pose a real risk.