When a Mistake Has Been Made in Billing, You Should

When a mistake has been made in billing, you should

A) rebill, noting the changes on the copy of the original form and writing "Second Billing" at the top.
B) hope the insurance provider will not notice any mistakes.
C) wait until the insurance provider asks for corrections.
D) trace the original claim.
E) wait until the insurance provider asks for corrections AND trace the original claim.