The Java man is considered to have existed in

Java Man (Homo erectus erectus) is the popular name given to early human fossils discovered on the island of Java (Indonesia) in 1891 and 1892. Led by Eugene Dubois, the excavation team uncovered a tooth, a skullcap, and a thighbone at Trinil on the banks of the Solo River in East Java. Arguing that the fossils represented the "missing link" between apes and humans, Dubois gave the species the scientific name Anthropopithecus erectus, then later renamed it Pithecanthropus erectus. Some of the java man fossils have also found in China. 
Therefore, the correct answer is option D.