Ardipithecus ramidus was:​

A) ​discovered in Chad, central Africa, and suggests that the human-chimp-gorilla split occurred earlier than we previously thought
B) ​discovered in the Awash River Basin area of Ethiopia and was an early biped that lived in a forested environment
C) ​discovered in Kenya and is a direct ancestor to Homo sapiens
D) ​discovered in Tanzania, lived in a lush tropical environment, and has three separate species associated with it