Question

Combine the sentences with a conjunction expressing contrast:
The food is cooked. It is not free of microorganisms.

• A. The food is cooked and it is not free of microorganisms.
• B. The food is cooked, so it is not free of microorganisms.
• C. The food, although cooked, is not free of microorganisms.
• D. The food is cooked, therefore it is not free of microorganisms.

Answer 1

The correct option is C The food, although cooked, is not free of microorganisms.

We can determine the correct answer with the help of logic and by eliminating the incorrect answer.

The subordinating conjunctions used to express contrast in a sentence are though, although, as, however, whoever, whatever and notwithstanding.

And, so do not express contrast. We can thus eliminate options A and B as incorrect answers.

Option C is the correct answer as the conjunction 'although' joins the two sentence to express a contrast.

Option D is incorrect as the conjunction 'therefore' is used to explain cause and effect.