Which of the following best describes a symptom of dysarthria?

Dysarthria is characterized primarily by motor speech difficulties resulting from the weak or uncoordinated muscles involved in speech production. This means that individuals with dysarthria often have trouble coordinating the movements required for clear speech, leading to issues such as slurred or slow speech, and difficulty controlling the rate and rhythm of speech. Poor coordination of the speech muscles directly affects articulation and intelligibility, which aligns with the symptoms observed in individuals with this condition.

The other options do not describe symptoms of dysarthria accurately. The ability to speak in full sentences would indicate functional speech capacity, while normal articulation and enhanced speech clarity are indicative of effective speech production, which is typically impaired in dysarthria. Consequently, the presence of poor coordination of speech muscles is the hallmark symptom of dysarthria, highlighting the motor aspect of the disorder.