Parts of a sentence are given below in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
P. but results in widespread hunger, death and social unrest
Q. some of the causes of famine in that region
R. drought, floods, war and economic instability are
S. which not only causes severe shortage of food

Correct option is A

Option (a) is the correct order of the given sentences.
Explanation:
· R introduces the causes clearly.
· Q identifies what those causes are.
· S adds the effect of those causes.
· P shows the consequence.
· Sequence: R (causes) → Q (context) → S (result) → P (consequence).