The passage’s statement that, by the 10th century, Muslim scholars had developed the astrolabe into a sophisticated mechanical device would justify which of the following conclusions
A． Muslim scholars were unaware of other scientific measuring devices.
B． Muslim scholars developed a kind of technology that had never been known before.
C． There was no need for sophisticated mechanical devices such as the astrolabe before the 10th century.
D． The astrolabe’s sophistication allowed for more exploration of the physical world.
E． Muslim scholars had a need to solve complex problems in astronomy, navigation, surveying, and timekeeping.