General liability insurance (answer C) would help Conrad with court costs and settlements in a situation when he is sued because his design collapsed and injured several people. General liability insurance is a insurance that can protect the insured person from a variety of claims including body injury, property damage. A single accident can result in lawsuit.
The cost of general liability insurance is impacted by several factors: the business type, the location of the business, the level of risk the business is exposed to, the number of employees.