Kinda urgent /

In study at Montclair State University in New Jersy, people were asked how they felt abot food that was arranged neatly compared to food that looked messy. The people believed that food that was plated nicely tasted better even though it used the same ingredients. They also expected to like the neatly plated food better and they were willing to pay more for it.

“They” also expected to like the neatly / In this sentence what does they refer to?