In each of the items in this section there is a sentence of which some parts have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S, to produce the correct sentence. Choose the correct sequence
I was so angry that (P) if I had met him in the street (Q) and not waited to ask him (R) why he had written me an insulting letter (S) I would have knocked him down
The proper sequence should be :

Options

A. PSQR
B. PQRS
C. SQRP
D. RSQP