Final answer:
Legends, religious beliefs, and social customs are examples of Tradition. Traditions encompass enduring practices, narratives, and customs vital to a culture's legacy, while artifacts are physical objects from a culture. Secondary sources are later analyses and narratives of historical events.
Step-by-step explanation:
Legends, religious beliefs, and social customs are examples of b) Tradition. Traditions are essential aspects of a culture's legacy that are passed down through generations. They include an array of practices, narratives, beliefs, and customs that encapsulate the collective memory and experiences of a society. These can be instantiated through oral stories, rituals, festivals, and their inherent values and norms. Through tradition, societies maintain their historical continuity and shape their unique identity over time.
Artifacts, on the other hand, are tangible objects produced by a culture that provide us with physical evidence of that culture's technology, arts, and institutions of a given people at a given time. They could take the form of architecture, tools, art, music, and other material objects. It is through the study of both artifacts and traditions that historians, art historians, anthropologists, and archaeologists uncover the detailed past of human societies.
Secondary sources are documents such as scholarly articles, biographies, or textbooks that discuss primary sources and facts about history but are created after the period they describe. They are valuable when they reference primary sources and provide analysis and context for historical events.