Whenever an application is modified, what should be tested to determine the full impact of the
change? Choose the BEST answer.

A.
Interface systems with other applications or systems

B.
The entire program, including any interface systems with other applications or systems

C.
All programs, including interface systems with other applications or systems

D.
Mission-critical functions and any interface systems with other applications or systems

Explanation:
Whenever an application is modified, the entire program, including any interface
systems with other applications or systems, should be tested to determine the full impact of the
change.