Final answer:
The defender among the options is a building that a company owns, which acts as a safeguard for the company's assets and operations.
Step-by-step explanation:
The defender among the given options is b. a building that a company owns. In a business context, a building owned by a company acts as a safeguard or defender of the company's assets and operations. It provides a physical space for the company to conduct its activities, protects the company's resources and equipment, and can be used as collateral in case of financial difficulties.
For example, if a company is unable to repay a loan, the bank can take legal action and require the company to sell its buildings or equipment to fulfill the loan payment. This highlights the role of a building as a defender for the company.