What coverage option may help cover the cost of repairing a locomotive damaged by an explosion?

Legal Liability Coverage is the correct choice in this scenario because it is designed to protect a party against claims for damages for which they are found liable. In the case of a locomotive damaged by an explosion, this type of coverage would help cover the costs associated with the repairs if the owner or operator is legally responsible for the damage. It specifically pertains to liability arising from incidents that occur during the operation of vehicles or equipment.

The other coverage options do not specifically address the legal liability aspect for damages caused by an explosion. Replacement Cost Coverage typically deals with the replacement of property at its current market value without depreciation but does not address liability concerns. Interior Explosion Coverage usually focuses on damage caused by explosions occurring within a structure rather than within a locomotive, missing the mark for this situation. Mechanical Breakdown Coverage generally covers repairs and breakdowns of mechanical systems, without regard to liability from external causes like explosions. Thus, while they each serve a purpose, none align as closely with addressing potential liability for damages from an explosive incident as Legal Liability Coverage.