Because they were fighting on their own territory and defending their home, the vietcong had greater determination than the US who were not really sure what they were there for.
The answers would be B and C...
Since you are in Connexus (TCAH) its in your textbook
Topic 2 The Ancient Middle East and Egypt (3200 B.C.–500 B.C.) > 2.2 Empires in Mesopotamia page 33
Option D. The Nubians belonged to a unique ethnic group who originated from the central river of Nile.
Nubians and Egyptians shared the identical stone art called pharaohs and they were buried and interred with a stone arrow which symbolizes their skill in archery.
Nubians are considered to have followed the Egyptian strategies of ruling and we could see a few pharaohs which originated from Nubia. Research scholars say that Nubians absorbed the culture heritage of Egyptians and both the cultures were non-distinguishable.
That answer might be in the book cant find it anywhere