Answer:
The correct answer would be "The species is closely related to modern humans".
Elimination:
The species cannot be smarter than modern humans as the brain size of modern humans is around 1500 cubic centimeters.
According to the graph, the species with a brain size of 1200 cc have recently evolved.
Thus, they could not live between 1.5 and 1 million years ago or between 1 and 0.5 million years ago.