Which is true about scientific theories?
A). They are proposed by scientists who wish to investigate a new topic.
B). They are only based on the most recent evidence.
C). They are the result of a single experiment.

D). They are the results of many experiments over a long period of time.

Question

Which is true about scientific theories?
A). They are proposed by scientists who wish to investigate a new topic.
B). They are only based on the most recent evidence.
C). They are the result of a single experiment.
	
D). They are the results of many experiments over a long period of time.

anonymous · Answer

Well first let's define theory.
"A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation."

One of the key terms here is well-substantiated. 
So out of the four possible answers, which of the four would make a theory well-substantiated?