What do the following areas of scientific understanding have in common?
* the understanding of the structure of the Solar System
* the understanding of how traits are passed from parents to offspring the *understanding of the building blocks of matter and life
A. The scientific knowledge related to these areas has changed over time.
B. We know all there is to know about these areas of science.
C. There is no scientific knowledge related to these areas of science.
D. The scientific knowledge related to these areas has remained unchanged since their discovery.