Correct option is A
The correct response for Emperor Chandragupta Maurya in the given situation is (a) We will march at dawn.
· This response is contextually appropriate as it aligns with a typical command or declaration expected from a leader in a military setting, indicating the time of action.
· Given Situation: In response to being informed that all troops are ready, stating "We will march at dawn" effectively communicates the emperor's decision on when the action (the march) will commence, demonstrating leadership and decisiveness.