The first and sixth sentences are given as S1 and S6. The middle four sentences in each have been jumbled up and labeled as P, Q, R, and S. You are required to find the proper sequence of the four sentences and mark your response accordingly. 

S1: Even today, unemployment is one of India’s most crucial socio-economic problems.

P: It can be voluntary or involuntary.

Q: Unemployment is defined as a person who is not gainfully employed in a productive activity.

R: Such people are usually not considered unemployed since their work is voluntary.

S: Voluntary unemployment refers to a person being unemployed by choice and not by compulsion.

S6: Involuntary unemployment refers to people who are capable and willing to do a job but are unable to find work.