Question

The change required for sentence underlined at [8] is- [Advanced]

• A. NO CHANGE
• B. how large a role that it played
• C. how large a role sea otters played
• D. that they played such a large role

Answer 1

The correct option is C how large a role sea otters played

Since sea otters absorb carbon dioxide, they help the kelp in decreasing carbon dioxide level in atmosphere. Hene, third person plural subject pronoun "they" is used to substitute for "sea otters". Hence, Option C is correct. The rest of the options do not adhere to this rule, hence incorrect.