Per AC 107-2A § 8.3, which is a method a remote pilot may use to comply with the prohibition on operating over people in 14 CFR § 107.39?
Why: AC 107-2A § 8.3, p. 8-1, lists selecting an operational location without people present, maintaining a safe distance from non-participants, and ensuring the aircraft is not operated over moving vehicles as ways to comply with § 107.39.
Altitude has no bearing on § 107.39's prohibition, which turns on who is below, not how high the aircraft flies; the 400-foot figure in § 107.51(b) is a separate operating limitation, not an exemption from subpart D.
A bystander's verbal permission does not make them a "directly participating" person under AC § 8.3's definition, and it does not substitute for meeting one of the subpart D categories.