The everyday theory doesn't work by randomly guessing, nothing in science does.
According to a few sources i have found out that a Theory isn't actually a random guess but yet a calculated one.
The right answer would be: It is supported by observation and testing.
The difference between a Hypothesis and a Theory is this -
A hypothesis is a suggested explanation that must be tested. For example, Larry could make a hypothesis about the raccoons and test it. But, even if he is right, it still isn't a theory. A theory is a more general explanation about how the natural world works, based on lots and lots of evidence and testing.
So the right answer once again would be "B".
