Question

in science, a hypothesis must be
a. correct.
b. manipulated.
c. controlled.
d. testable.
please select the best answer from the choices provided

Explanation:

A hypothesis in science is an educated - guess that can be tested through experiments or observations. It doesn't have to be correct initially. Manipulating and controlling are aspects of experimental design, not requirements for a hypothesis. A testable hypothesis allows for the collection of data to support or refute it.

Answer:

D. testable