How do Highly Suspicious artifacts in-AutoFocus help identify when an unknown, potential zero-day, targeted attack occur to allow one to adjust the security posture?

How do Highly Suspicious artifacts in-AutoFocus help identify when an unknown, potential zero-day, targeted attack occur to allow one to adjust the security posture?
A . Highly Suspicious artifacts are associated with High-Risk payloads that are inflicting massive amounts of damage to end customers.
B . All High Risk artifacts are automatically classified as Highly Suspicious.
C . Highly Suspicious artifacts are High Risk artifacts that have been seen in very few samples.
D . Highly Suspicious artifacts have been seen infecting a broad, significant range of companies.

Answer: C