Fatigue Risk Management Systems (FRMS) are:

data-driven systems to continuously monitor and manage fatigue-related safety risks

Correct

optional and unnecessary

only for long-haul operations

a type of CRM training

Explanation

FRMS is a systematic method using data to monitor fatigue risk and implement mitigations beyond prescriptive flight time limitations.

Test yourself with random questions from Human Performance and all other ATPL subjects.