A beam of electrons, a beam of protons, and a beam of oxygen atoms each pass at the same speed through a 1-μ,m-wide slit. Which will produce the widest central maximum on a detector behind the slit?

A. The beam of electrons. B. The beam of protons.

C. The beam of oxygen atoms. D. All three patterns will be the same.

E. None of the beams will produce a diffraction pattern.