Heroku add-ons are cool because they:

Heroku add-ons are cool because they:
A . Give you the ability to add complex functionality to your application without having to manage the underlying software or infrastructure.
B . Accessorize your dynos with over-clocked CPU power and faster I/O speeds
C . Can be provisioned easily from the Heroku Enterprise Flea Market system.
D . Cost nothing ― billing is easy because they’re always provided at no additional cost with every Heroku Enterprise account.

View Answer

Answer: A