The correct answer is B) Petitions.
The Supreme Court has ruled that states can require the owners of shopping centers to allow petitions on their property.
In governmental terms, a petition is when people request something to a public officer or a government department. In legal terms, is the title of the pleading that initiates a legal case. So the Supreme Court has allowed citizens to assemble and petition on private property in that it has ruled that states may allow people to petition in shopping centers.