The "historians" as mentioned in the last paragraph regard the technology with ______.

A．Scientific activities are deeply involved with those of technology.
B．Industrial civilization is largely based on the scientific progress.
C．Science and technology move forward at a comparable speed.
D．Either of science and technology is necessary for the advance of each other.

A．it involves a long process of change
B．it focuses on the casual aspects of the material world
C．it resorts to experiments as an exclusive method of research
D．it is concerned about the theoretical development