Answer:
The correct answer is - C.
Explanation:
Unanticipated problems can be explained as any incident or outcome that follows the following:
Unexpected result or incident in terms of nature, severity, or frequency, stander process and subject being studied. If the incident or problem may or definitely going to affect rights, safety or wellness. If there is any type of risk physiological, economical social harm.
Investigators must report all unanticipated problems and events to the IRB if it meets the criteria given above.
Thus, the correct answer is - C.