Which type of speech sound issue results from a disorder affecting the child's motor skills?

The correct answer is the type of speech sound issue that results from a disorder affecting the child's motor skills, which is articulation. Articulation disorders specifically involve the physical production and timing of speech sounds. These disorders occur when a child has difficulty coordinating the movements necessary to produce sounds correctly, often due to motor skill challenges.

In contrast, phonology involves the rules and patterns of sounds in a language, which is more about how sounds are organized and used rather than the physical ability to produce them. Fluency disorders, such as stuttering, relate to the flow of speech and are not primarily motor-based. Voice disorders involve issues with the pitch, loudness, or quality of the voice, which is unrelated to the motor skills required for producing individual speech sounds. Therefore, articulation is the type of disorder most directly connected to motor skill deficiencies.