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 FIFTH sentence after rearrangement?

The correct answer is Option C.

To determine the correct sequence of sentences, let us analyze the logical flow and connections between the given statements:

1. First sentence: Statement B introduces the main topic of the passage: "Rising pollution is a very big problem for us." This sets the context for the paragraph.

2. Second sentence: Statement A elaborates on how pollution affects us directly in daily life: "We breathe polluted air, drink polluted water and eat polluted food."

3. Third sentence: Statement E expands on the wider impact of pollution on all living beings and nature: "Pollution produces many health challenges not only for all creatures but also for our environment."

4. Fourth sentence: Statement D summarizes this threat concisely: "It is producing health challenges for all."

5. Fifth sentence: Statement C poses a concluding question addressing how to tackle the issue introduced throughout the paragraph: "The question is rising how can we protect ourselves from this enemy."

Thus, the logical and coherent order of the sentences is B - A - E - D - C.

The fifth sentence in this logical sequence is C.