Select the most appropriate option to fill in blank number 3.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. than.
Context: The sentence compares the complexity of dolphin society with what was previously imagined, so a comparative conjunction is needed.
Meaning of the words:
For: Indicates purpose; incorrect here.
The: Definite article; not suitable here.
Than: Used in comparisons.
To: Preposition; doesn't make sense here.
Correct word: Than
Reason: The phrase “more complex than” is a grammatically correct comparative structure.
Final Sentence: …their society is more complex than people previously imagined.
Hence the chosen option is correct.