For a transverse-framed ship of double-bottom construction, what structural members supports the inner bottom shell (or tank-tops)?

Correct Answer: Option D — Transversely arranged continuous vertical floors.

In transverse-framed vessels, floors are vertical plates running athwartships that provide the primary structural support for the inner bottom plating. These floors connect the keel to the margin plates, ensuring the tank top can withstand the hydrostatic and cargo loads imposed during vessel operations.