From the words or groups of words lettered A to D, choose the word or group of words that best completes the sentence. The police are...the trail of the sus...

From the words or groups of words lettered A to D, choose the word or group of words that best completes the sentence.
The police are...the trail of the suspect.

Answer Details

The best option to complete the sentence is "on." The word "on" is commonly used to indicate pursuit, as in "on the trail" or "on the scent." In this context, it suggests that the police are actively following or searching for the suspect. The other options do not convey the same sense of active pursuit.