Directions: In the following question, sentences of a paragraph have been jumbled and labelled as P, Q, R and S. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option.

P. A completely new application now enables those who have lost an arm.

Q. People are already using a range of devices that involve connecting the brain to a computer.

R. A device like a miniature microphone that transmits sound signals directly to the brain and enables deaf people to hear.

S. One well-known device is the cochlear implant.