Step 1: Understand the Problem.
We need to arrange the given sentences into a coherent sequence that forms a logical and grammatically correct sentence. Let's analyze each sentence and identify how they can fit together.
Step 2: Analyze Each Sentence.
(A) (a) on phone:
- This phrase indicates the mode of communication (phone). It should logically follow a mention of dialling or calling.
(B) (b) though he dialled frequently:
- This introduces an action ("dialled frequently") and suggests a contrast or reason for something else happening.
(C) (c) and had left no information:
- This provides additional context about the outcome of the actions mentioned earlier.
(D) (d) my brother could not contact me:
- This is the main statement, indicating the result or conclusion of the situation.
(E) (e) as I had gone out of office:
- This explains the reason why the brother could not contact the speaker.
Step 3: Determine the Logical Sequence.
To form a coherent sentence, we need to:
1. Start with the main statement: (d) my brother could not contact me.
2. Follow it with the contrast: (b) though he dialled frequently.
3. Mention the mode of communication: (a) on phone.
4. Provide the reason: (e) as I had gone out of office.
5. Add the final detail: (c) and had left no information.
Thus, the correct sequence is:
\[
\text{\(d>b>a>e>c\)}
\]
This corresponds to Option (B)