What Is the Difference Between Asynchronous and Synchronous Communication

Multiple Choice

What is the difference between asynchronous and synchronous communication?

A) Asynchronous is real-time communication. Synchronous is one-way technology.
B) Asynchronous is communication that does not occur at the same time. Synchronous communication occurs at the same time.
C) Asynchronous communication includes instant messaging. Synchronous communication includes email.
D) Asynchronous communication is fast and instant. Synchronous communication is collected at a single point in time.