Tony fell two stories while working on a construction site. The left side of his head hit some concrete steps. During his recovery, his doctors noticed that while he can understand what others are saying to him, Tony has a hard time speaking even though there is nothing wrong with the muscles that control his speech. Tony MOST likely suffered damage to area.

Broca's area

Explanation:

Broca's area is primarily responsible for producing speech. It controls motor functions involved with speech production. It is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain.

People who have damage to this area of the brain can understand words but struggle to put them together in speech. Tony clearly has no problem processing what is being said but because of the damage he can't put his thoughts to words.

Broca's area  

Explanation:

In neurology and medicine, Broca's area is the are of the brain that is associated with the ability to produce speech. This area is located in the left side of the brain and in the frontal lobe. The main function of this area is production of speech. Most of the time, when we hit our head and our speech is affected (without our muscles of our face being affected) it is likely that the problem lies in Broca's area.

In this example, Tony fell and the left side of his head hit some concrete steps. Now, he can understand what other people are saying to him but he has a hard time speaking, in other words, the production of speech is being affected. Therefore, it is most likely that Tony suffered damage to Broca's area