Some parts of a passage have been jumbled up. Select the option that gives the correct sequence.

In the Old Stone Age, food was obtained by hunting animals and gathering edible plants.

P. They used stone tools for hunting animals

Q. Pure quartzite is usually white to grey

R. Therefore, these people are called hunter-gatherers

S. Stone implements are made of quartzite

Correct option is C

• Explanation: The opening line already states that in the Old Stone Age, people obtained food by hunting animals and gathering edible plants. The next parts must logically (i) conclude what such people are called, and then (ii) support the hunting part by describing the tools and their material.

• Correct logical flow:

• R. Therefore, these people are called hunter-gatherers

– Since the opening sentence mentions both hunting and gathering, the immediate inference is the name “hunter-gatherers”. Hence, the conclusion using “Therefore” fits first after the opening statement.

• P. They used stone tools for hunting animals

– After naming them, the passage explains the hunting method/tools.

• S. Stone implements are made of quartzite

– “Stone tools/implements” are then specified in terms of material.

• Q. Pure quartzite is usually white to grey

– Finally, an additional descriptive fact about quartzite completes the information.

• Final sequence: R → P → S → Q

• Why option (d) PSRQ is not correct (in this question’s intended pattern):

• In PSRQ, the statement with “Therefore” (R) comes at the end, but here the opening line already provides the complete reason for the term “hunter-gatherers”, so the inference is placed immediately as the next line in the correct arrangement for this set.

So the correct answer is (c).