The Sino-Tibetan language family has over 400 languages, and is the second largest family next to the Indo-European. It's early languages were Sinitic (Chinese), Tibitec, Karnic, Bodo-Garo, Kuki-Chin, Meitei, Tamangic, Bai, Jingpho-Luish, and Lolo-Burmese, but has 400+ languages/major dialects being used modernly.
Attach a picture of the question please
Answer:
A. 4x +6-3x is the expression among them
Answer: The core of a topic, the facts that make the topic