S1: Let me elaborate a little on what I mean by a properly channeled scientific approach. P: There are planners deciding the strategy. Q: In a major war, there are several different operations involved. R: There are complex issues involving communications between different nerve centres. S: There are factories producing the required armaments. S6: And of course, there are soldiers, commandos, to say nothing of intelligence men, besides many others who do their bit to make a successful attack. The Proper sequence should be: A. PSRQ B. QPSR C. RSPQ D. SRQP

The correct answer is: A. PSRQ

The sentence “In a major war, there are several different operations involved” is the main idea of the paragraph. The other sentences provide details to support this idea.

The sentence “There are planners deciding the strategy” provides a detail about one of the different operations involved in a major war.

The sentence “There are factories producing the required armaments” provides another detail about one of the different operations involved in a major war.

The sentence “There are complex issues involving communications between different nerve centres” provides a detail about one of the different operations involved in a major war.

The sentence “And of course, there are soldiers, commandos, to say nothing of intelligence men, besides many others who do their bit to make a successful attack” provides a list of the people who are involved in a major war.

The correct sequence of the sentences is:

1. In a major war, there are several different operations involved.
2. There are planners deciding the strategy.
3. There are factories producing the required armaments.
4. There are complex issues involving communications between different nerve centres.
5. And of course, there are soldiers, commandos, to say nothing of intelligence men, besides many others who do their bit to make a successful attack.

The other options are incorrect because they do not follow the logical order of the sentences.