After crossing his neighbor's property for more than five years to get to the lake, what has Owner A most likely acquired?

Owner A has most likely acquired an easement by prescription. This is because after continuously crossing his neighbor's property for over five years, he has established a legal right to use the land. Option A is incorrect because a license is a limited privilege, not a legal right. Option B is incorrect because traversing the property does not automatically grant ownership. Option D is incorrect because a tenancy at will is an agreement between a landlord and a tenant, not relevant in this situation.