BOTH INTERNATIONAL & INLAND When is "risk of collision" considered to exist?

Correct Answer: Option B — there is any doubt that a risk of collision exists

Rule 7(a) establishes that risk of collision shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change. Crucially, the rule emphasizes that such risk must be assumed to exist if there is any doubt regarding the situation, prioritizing caution in navigation.