Step 1: Understanding the chronological order of philosophies.
The sequence of ethical theories, ordered by their historical development, is as follows:
- Stoicism (A): This is the earliest among the options, originating around the 3rd century BCE, emphasizing virtue and self-control.
- Kantian Deontology (C): Developed by Immanuel Kant in the 18th century, it emphasizes duty, moral laws, and rational action.
- Utilitarianism (D): Proposed by philosophers like Jeremy Bentham and John Stuart Mill in the 19th century, this theory advocates for actions that maximize happiness.
- Emotivism (B): This is a more recent ethical theory, developed in the 20th century, asserting that moral statements express emotional responses rather than factual claims.
Step 2: Conclusion.
The correct order is A, C, D, B.
Final Answer:
\[
\boxed{\text{The correct answer is 1. A, C, D, B.}}
\]