Answer:
A). Admit the child to the hospital for a neurology consult.
Explanation:
As per the question, the warranted action would be 'admitting the child to the hospital for a neurology consult' as he displays a slurring in his speech and vomited twice too after the head injury which indicates the symptoms of moderate head injury. Thus, he must be taken to a neurologist for a prompt evaluation which includes the assessment of the fall(height), immediate response or reaction after the injury, symptoms like vomiting and slurring of speech, current medicines(if any) the child is undergoing, medical history, and pain in other body parts, etc. This assessment along with various other examinations would help the neurologist to conclude the child's health. Therefore, option A is the correct answer.