Topic: Group verb,

Best Answer Explained in Below-:

The phrase "remained in custody" is the most appropriate choice in the context of the sentence. This construction implies that the accused men have not been released and are continuing to stay in custody as they await their upcoming trial. The verb "remained" conveys a sense of ongoing status or condition, which is fitting for individuals whose legal situation is pending.

In contrast, the other options do not accurately reflect the legal context. "Delivered into" and "handed into" suggest an action of transferring or handing over, which is less appropriate when discussing the continuous state of being in custody. "Put into" also indicates an initial action rather than the sustained condition of being held.

The use of "remained" emphasizes the ongoing nature of their detention, making it the most suitable choice for expressing that the accused men are still under custodial care while their trial is forthcoming. Therefore, the correct completion of the sentence is "The accused men have been remained in custody to await trial," effectively communicating their current legal status.