Question

Change the degree of comparison of the following sentence.

Being cleaner and longer-burning compared with bituminous coal, anthracite was the first coal widely used in the United States for both domestic and industrial purposes.

• A. Being cleaner and longer-burning compared with
• B. Both cleaner and more longer-burning compared to
• C. Cleaner and longer-burning than
• D. By burning longer and more clean than
• E. Cleaner as well as longer-burning, unlike

Answer 1

The correct option is C Cleaner and longer-burning than

The underlined part of the sentence can be replaced with option C. It removes the error by correctly completing the comparison with the word 'than'.

Rest of the options are not correct in terms of comparison.

Thus, option C is the correct answer.