The statement "electrons have a negative charge" is true. Select the correct evidence scientist have that proves this statement is true?

Most alpha particles shot at gold foil go straight through, without any changes in their direction.

The particles ejected in Thomson's experiment bent away from the negatively charged plates, but toward positively charged plates.

A few alpha particles shot at gold foil bounce in the opposite direction

No matter which element Thomson put in a cathode ray tube, the smae negative particles wit the same properties (such as charge and mass) were ejectected.