What Is the Difference Between a Colloquium and a Symposium

What is the difference between a colloquium and a symposium?

A) A colloquium is a group discussion of a topic, whereas a symposium features individual speakers and presentations.
B) A colloquium features presenters who agree on a topic, whereas a symposium involves disagreement and debate among the speakers.
C) A colloquium takes place at a college or university, whereas a symposium is held at a business conference or industry convention.
D) A colloquium is a presentation held before a large audience, whereas a symposium is a presentation before a small, select group of people.
E) A colloquium presentation does not involve audience interaction, whereas the audience participates in a symposium.