Parts of a sentence are given below. While the first part is in the correct place, the remaining parts (labelled P, Q, R and S) are jumbled up. Arrange the parts in the correct order to form a meaningful and coherent sentence.

S1. The English language is the sine qua non

P) which is the major hub

Q) for the corporate sector and entrepreneurship

R) in today’s world of communication

S) especially in a country like India