Which of the pre-australopithecines was found outside of east africa? ardipithecus ramidus ardipithecus kadabba sahelanthropus tchadensis orrorin tugenensis?

Answer is  Orrorin tugenensis
      Orrorin tugenensis also called the Millenium Man lived in the Eastern Africa, specifically in Tugen Hills, central Kenya about 6 million years ago. These species were the size of a chimpanzee and had small teeth with thick enamel similar to humans. Evidence showed that the most important fossil found is the upper femur, was having a bone buildup typical of a biped, indicating that these individuals climbed trees but walked upright with two legs on the ground.