A Person's Level of Anxiety: Severe

Explanation:

The symptoms described—a person being confused, speaking rapidly in disconnected phrases, and being unable to concentrate or make simple decisions—indicate a high level of anxiety. In clinical contexts, these symptoms are associated with severe anxiety. Severe anxiety can inhibit a person's ability to function normally and perform simple tasks. It is a state of intense, excessive, and persistent worry and fear about everyday situations.

In severe cases, anxiety might cause someone to be frozen to the spot or to have a considerably disorganized thought process, as described for the person in the scenario.