Final answer:
A trademark is an identifying symbol or name for a particular good. Joseph can apply to register the name "Campbell's Pet Store" as a trademark if it is not already registered with the U.S. government.
Step-by-step explanation:
A trademark is an identifying symbol or name for a particular good, like Chiquita bananas, Chevrolet cars, or the Nike "swoosh" that appears on shoes and athletic gear.
When Joseph Campbell wants to trademark the name "Campbell's Pet Store," he should first check if the name is already registered with the U.S. government.
If it is not registered, he can apply to register the name as a trademark. If he is the first to register the name, he is likely to receive trademark protection for it.