What is the main difference between a vulnerability scan and a penetration test?
a. A vulnerability scan is automated, while a penetration test is manual.
b. A vulnerability scan only finds surface vulnerabilities, while a penetration test can find deep vulnerabilities.
c. A vulnerability scan is a defensive assessment, while a penetration test is an offensive assessment.
d. A vulnerability scan is less expensive than a penetration test.
e. All of the above.