In the sentence, certain words are in bold and numbered from A to E, which are the possible pairs to be interchanged. Choose the pair(s) of words which need to be interchanged to make the sentence grammatically correct and meaningful.

The age of the remains (A)marks Central Java as Homo erectus’s final stand, and (B)confirms the species as the longest surviving human (C)ancestor by far, its presence (D)evolutionary across the (E)stretching tree for about 1.8m years.