In each of the items 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 and mark in your Answer Sheet accordingly.

The principal said that those student would not be permitted to enter who do not produce identity cards

P: The principal said that · Q: those student would not be permitted to enter · R: who do not · S: produce identity cards