What Is the Main Difference Between Calling the Commands 'Ansible

Multiple Choice

What is the main difference between calling the commands 'ansible' and 'ansible-playbook' on the command line?

A) 'ansible' is for setting configuration and environment variables which 'ansible-playbook' will use when running plays.
B) 'ansible-playbook' is for running entire Playbooks while 'ansible' is for calling ad-hoc commands.
C) 'ansible-playbook' runs the playbooks by using the 'ansible' command to run the individual plays
D) 'ansible' is for running individual plays and 'ansible-playbook' is for running the entire playbook.