Directions: Five sentences A, B, C, D, and E are given below, you need to rearrange the sentences so that the five sentences can together form a meaningful paragraph.

A. We breathe polluted air, drink polluted water and eat polluted food.
B. Rising pollution is a very big problem for us.
C. The question is rising how can we protect ourselves from this enemy.
D. It is producing health challenges for all.
E. Pollution produces many health challenges not only for all creatures but also for our environment.

Which of the following should be the FIRST sentence after rearrangement?

The correct answer is B.

To determine the correct order of sentences for forming a coherent paragraph, let us analyze the role and content of each sentence:

1. Sentence B: "Rising pollution is a very big problem for us."
This sentence introduces the main topic of the paragraph—pollution—in a broad and general manner. It serves as an ideal opening statement or introductory topic sentence for the paragraph.

2. Sentence D: "It is producing health challenges for all."
The pronoun "It" refers back to "Rising pollution" introduced in sentence B. This logical connection makes sentence D a natural follow-up to sentence B.

3. Sentence E: "Pollution produces many health challenges not only for all creatures but also for our environment."
This sentence elaborates on the scope of health and environmental challenges caused by pollution, expanding upon the idea presented in sentence D.

4. Sentence A: "We breathe polluted air, drink polluted water and eat polluted food."
This sentence provides concrete, real-life examples illustrating how pollution affects our daily lives and health.

5. Sentence C: "The question is rising how can we protect ourselves from this enemy."
This sentence concludes the paragraph by posing a practical question on how to tackle or protect against the problem of pollution discussed in the preceding sentences.

Following this logical flow, the complete and meaningful sequence of sentences is B - D - E - A - C.

Therefore, the FIRST sentence of the rearranged paragraph is B.