You sell t-shirts in a market price controls, where you charge the equilibrium price.
with
without

The correct answer for the question that is being presented above is this one: "with." You sell T-shirts in a market with price controls, where you charge the equilibrium price. The equilibrium price is already the best selling price that you can impose to a certain product.

t uses physical movement; such as hand gestures and body language, and also facial expressions; for example, eye contact, frowning, and smiling.

Explanation: