The following question consists of six sentences of a passage. The first and the sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly.S1: At four O’clock this morning, Hitler attacked and invaded Russia.S6: Under its cloak of false confidence, the German armies drew up in immense strength along a line which stretches from the White Sea to the Black Sea.P: No complaint had been made by Germany of its non-fulfilment.Q: All his usual formalities of perfidy were observed with scrupulous technique.R: No one could have expected that Hitler would do it.S: A non-aggression treaty had been solemnly signed and was in force between the two countries.The correct sequence should be

• A. R Q S P
• B. R S Q P
• C. P S Q R
• D. Q P S R