The desire for "unification" in ethics is a desire for: a. everyone to treat each other well. b. a single general moral principle. c. everyone to agree on moral principles. d. a scientific account of morality.

b. A single general moral principle.

Explanation:

The desire for "unification" in ethics is a desire for a single general moral principle.

Unification in ethics is the act of unifying. It is the desire to accomplish a family of four which is also known as the divine principle of unification. There are several principles that  go along the theory of unification that extend into the branches.

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