The answer is c post office protocol version 3 (POP 3)
Currently it is Donald J. Trump but he is leaving office so it will be Joe Biden :^)
I think the answer is c wooden frame
Excavations are made entirely in stable rock; or ... Excavations are less than 5 feet (1.52 m) in depth and examination of the ground by a competent person provides no indication of a potential cave-in.