Overall business risk for a particular threat can be expressed as:

A.
a product of the probability and magnitude of the impact if a threat successfully exploits a vulnerability.

B.
the magnitude of the impact should a threat source successfully exploit the vulnerability.

C.
the likelihood of a given threat source exploiting a given vulnerability.

D.
the collective judgment of the risk assessment team.

Explanation:
Choice A takes into consideration the likelihood and magnitude of the impact and provides the best measure of
the risk to an asset. Choice B provides only the likelihood of a threat exploiting a vulnerability in the asset but
does not provide the magnitude of the possible damage to the asset. Similarly, choice C considers only the
magnitude of the damage and not the possibility of a threat exploiting a vulnerability. Choice D defines the risk
on an arbitrary basis and is not suitable for a scientific risk management process.