Explanation:
The Terracotta Army refers to the thousands of life-size clay models of soldiers, horses, and chariots which were deposited around the grand mausoleum of <em><u>Shi Huangdi</u></em>, <u><em>first emperor of China and founder of the Qin dynasty,</em></u> located near Lishan in Shaanxi Province, central China
Answer: B
Explanation: Musical Instrument Digital Interface
1,4 describes the location of the playground, if im wrong oh well