The question below consists of a set of labeled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P. The demand for fish has increased.
Q. However, adequate fish is not available in the lake.
R. This is mainly because the migratory fish from Chindwin-Irrawaddy river system to Manipur river system have declined steadily after the barrage came up.
S. At least two lakh people are directly dependent on the lake for Fishing.

Correct option is A

The correct order of the sentences to form a coherent paragraph is SPQR.
 The first sentence (S) states that at least two lakh people are directly dependent on the lake for fishing. This provides the context for the subsequent sentences.
 The second sentence (P) talks about an increase in the demand for fish, which highlights the importance of the lake as a source of livelihood for the people.
 The third sentence (Q) states that adequate fish is not available in the lake. This creates a sense of tension and urgency in the paragraph, which is further explained in the next sentence.
 The fourth sentence (R) explains why there is a shortage of fish in the lake. The decline in migratory fish from the Chindwin-Irrawaddy River system to the Manipur River system after the barrage was constructed is the main reason behind the decline in fish population in the lake.
 Therefore, the correct order of the sentences is SPQR, and option (a) is the correct answer.