What LimitException could the following code trigger?

A company requires an external system to be notified whenever an account is updated.

What LimitException could the following code trigger?
A . System.LimitException: Too many future calls
B . System.LimitException: Too many callouts
C . System.LimitException: Too many SOQL queries
D . System.CalloutException: Callout from triggers are currently not supported

View Answer

Answer: A