Topic: Pronoun (সর্বনাম),

Best Answer Explained in Below-:

The correct choice is C: “than those of Dhaka” because it maintains grammatical correctness and clarity in comparing the roads of Chittagong and Dhaka. In comparative sentences, the phrase "wider than" requires a proper structure to convey what is being compared.

Option A, "than that of Dhaka," is grammatically incorrect because "that" refers to a singular noun and does not align with "roads," which is plural. Option B, "then those of Dhaka," misuses "then," which pertains to time rather than comparison. Option D, "then Dhaka's," similarly uses "then" incorrectly and lacks clarity; it implies a temporal relationship instead of a comparative one.

C effectively uses "those," which correctly references the plural noun "roads," ensuring a logical and grammatically sound comparison. The finalized statement, "The roads of Chittagong are wider than those of Dhaka," clearly articulates the intended meaning, making it the best choice.