Atheory that stands the test of time and becomes the basis for a field of
study is called a _
o
a. conclusion
o
b. working theory
o
o
c. hypothesis
d. paradigm

A working theory

Explanation:

It's name defines it for itself, and also the other three options are not appropriate: conclusion is the result of a logical process, hypothesis is the premises one wants to test in an experiment, and paradigm is more ample than just a working theory, since it encompasses the set of all methods, standards, concepts and thoughts associated with a particular field of research.