All facilities that use computers know that operating systems and applications require frequent patches and upgrades. Which of the following is essential to a good forensics facility?

a. A dedicated software testing engineer with a background in programming
b. A documented change control program that records every patch or upgrade performed, along with the time and date
c. A single person delegated to the task of performing patches and upgrades
d. A software monitoring application that automatically applies patches and upgrades as they become available

b.