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A student is writing a research paper on renewable energy sources. They want to ensure their sentences vary in structure to keep the reader engaged. Which of the following sentence structures would best introduce a complex idea while adding variety to their writing?

  1. AThe use of renewable energy sources, such as solar and wind power, is crucial for mitigating climate change and ensuring a sustainable future.
  2. BWe need renewable energy. It's good for the planet. People should use it.
  3. CRenewable energy, especially solar, is good.
  4. DRenewable energy is important. It helps the environment.
Show answer & explanation

Correct answer: A. The use of renewable energy sources, such as solar and wind power, is crucial for mitigating climate change and ensuring a sustainable future.

To add variety and introduce complex ideas, a writer should use varied sentence structures, including complex or compound-complex sentences with descriptive phrases and clauses. Option B is a complex sentence that uses an introductory phrase ('The use of renewable energy sources'), a parenthetical phrase ('such as solar and wind power'), and multiple clauses to convey a detailed idea, thus adding significant structural variety.

Why the other options are wrong

  • B. This consists of multiple short, simple sentences, which can make writing sound choppy and lacks structural complexity.
  • C. This is a simple sentence with a parenthetical phrase, which offers some variety but is not as complex or detailed as option B.
  • D. This consists of two short, simple sentences, lacking structural variety and depth.

Sentence Variety

The practice of using different sentence structures (simple, compound, complex, compound-complex) and lengths to enhance readability, engagement, and flow in writing.

  • Prevents monotony for the reader.
  • Improves flow and readability.
  • Can emphasize certain ideas.

Memory trick: Varying sentences is like a rollercoaster: different ups, downs, and loops keep it exciting.

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