What would have the greatest affect on a vessel's longitudinal strength?

Correct Answer: Option D — Grounding damage to the bilge strake, just aft of midships

Longitudinal bending moments are greatest near midships where the hull acts as a deep beam. Grounding damage to the bilge strake just aft of midships directly compromises the primary longitudinal strength members (tension/compression flanges), posing a severe structural integrity risk.