Văn bản cổng trường mở ra tác giả tên gì

Lý Lan sinh năm 1957, quê ở Thủ Dầu Một, tỉnh Bình Dương. Quê mẹ ở Lái Thiêu, quê cha ở huyện Triều Dương, thành phố Sán Đầu, tỉnh Quảng Đông, Trung Quốc.

Explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

sorry i cant