Dendrochronology is a method of dating by using tree rings. Tree rings, also known as growth rings, are formed in the trunk of trees as they grow each year. These rings can be observed and studied to determine various aspects of a tree's life, including its age. By analyzing the patterns and characteristics of tree rings, dendrochronologists can establish the chronological sequence of events for a particular area and use it to date various historical artifacts and events. So, the correct answer is tree rings.
