Which of these is one of the four coverages traditionally written in ocean marine insurance?

解析

Ocean marine is written in four traditional parts: hull on the vessel itself, cargo on the goods being carried, freight on the shipping revenue at risk, and protection and indemnity for the vessel owner's liability to crew, passengers and other property. Contractors equipment is an inland marine floater and garagekeepers covers customers' autos at a service business, so neither belongs to ocean marine. Business income is a commercial property coverage.