Directions (26-30) :In each of the questions given below a sentence is given which is divided into four phrases and these phrases aren’t in their correct position. Choose the option which gives the correct sequence of these phrases to make the sentence grammatically and cont extually correct. If the given phrases are already at their correct positions, then choose option “no rearrangement required” as your answer choice.

when there is a problem with (A ) / for maintaining fluid levels (B ) / one or more of the body’s mechanisms (C) / water retention occurs (D)

The correct option is DACB.

Let us analyze the given sentence fragments to determine their correct logical and grammatical order:

1. Phrase D: "water retention occurs" serves as the main clause and subject-verb pair that introduces the core subject of the sentence (what happens).

2. Phrase A: "when there is a problem with" naturally follows Phrase D to explain the condition under which water retention occurs ("water retention occurs when there is a problem with...").

3. Phrase C: "one or more of the body’s mechanisms" logically completes Phrase A by identifying what the problem is with ("a problem with one or more of the body's mechanisms...").

4. Phrase B: "for maintaining fluid levels" acts as a modifier explaining the purpose/function of the body's mechanisms mentioned in Phrase C ("mechanisms for maintaining fluid levels").

Combining these phrases in the order D → A → C → B forms the complete, coherent, and grammatically correct sentence:

"Water retention occurs when there is a problem with one or more of the body’s mechanisms for maintaining fluid levels."