Which ingredient is common in both mini crispy chicken sandwiches and teriyaki chicken rice bowl?

The correct choice is wheat, as it is a common ingredient in many bread products, including the buns used for mini crispy chicken sandwiches. Additionally, wheat is likely present in the rice bowl, either through any sauces or specific components that may include wheat-based ingredients, like certain forms of starch or noodles that may be used.

In the context of food preparation, wheat is widely used as a staple in various culinary applications, making it a probable shared ingredient in both menu items. The other options may appear in certain dishes but are less likely to be consistently present in both the mini crispy chicken sandwiches and the teriyaki chicken rice bowl, thus making wheat the most logical common ingredient.