The answer would be D-servile. servile means showing and excessive willingness to serve others. and butlers serve others.
well since they deleted my answer, you're on your own kid. Goggle it, you will find the answer right away.
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The definition of amiability is the quality of having a friendly and pleasant manner, and out of the choices the answer is likely to be
B. Joviality
due to the fact that Joviality means the same thing
