Explanation
Hospital is a place for (Medical)and surgical care and treatment. the word in the bracket is an adjective.
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medical is an adjective that means relating to illness and injuries and to their treatment or prevention.
in the above sentence " medical is used as an adjective because they are related to surgical care(illness and injuries) and treatment (prevention)"
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NOTE
the adverb form of *medical* is used in a way that is connected with medicine and the treatment of illness and injury.
in the above sentence, only surgical care and treatment are mentioned, not use the word medicine so "option A is more appropriate according to the sentence"
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