Rearrange the following sentences in the proper sequence to form a meaningful…

Concept: In sentence-rearrangement (para-jumble) questions, the opening sentence must introduce the subject on its own, without depending on a pronoun ('it', 'he', 'this') or a linking word that needs an earlier sentence. Every later sentence is then placed by tracing what its pronouns and connectives point back to, and the paragraph closes on a sentence that sums up or concludes rather than opens a new idea.

Application: Sentence B ('I am a writer as I might have been a doctor or a lawyer.') introduces the subject — the profession of being a writer — without depending on anything earlier, so it must open the paragraph. Sentence D ('It is so pleasant a profession...') uses 'it' to refer back to that profession named in B, so D follows B. Sentence A ('It is exciting and various') continues the same 'it', adding a second quality (exciting) alongside the 'pleasant' quality from D, so A follows D. Sentence C ('The writer is free to work in what he believes.') switches from the pronoun back to the explicit noun 'the writer' and delivers a summarizing statement, which is the natural way paragraphs of this kind close. The sequence is therefore B - D - A - C.

Cross-check: Starting the paragraph with A, C, or D instead of B leaves a pronoun ('it') or the noun phrase 'the writer' without anything to refer back to, since the profession has not yet been named in any of those openings — confirming that only B can be the opening sentence.

Why the other orders fail:

• CADB opens on the concluding statement about the writer's freedom before the profession itself is introduced.

• ABDC opens with 'it is exciting and various' while 'it' has no antecedent yet.

• DBCA opens with 'it is so pleasant a profession...' with the same dangling 'it', and also strands the concluding sentence in the middle of the paragraph.