In the simulation where amylase and starch interacted, the most accurate observation would typically be that "starch was broken down to maltose." Amylase is an enzyme that specifically catalyzes the breakdown of starch into maltose (a disaccharide) as one of its primary products. Further breakdown of maltose into glucose can occur, but the immediate result of the interaction is generally the formation of maltose.
If running the simulation multiple times led to variations, it could be possible to observe both maltose and glucose in the reactions, but the first product formed would be maltose when starch is acted upon by amylase. So the correct answer from your options would be:
Starch was broken down to maltose.