Ultraviolet Light Shining on an Initially Uncharged Electroscope Has No

Ultraviolet light shining on an initially uncharged electroscope has no noticeable effect on the electroscope because

A) the wavelength of the ultraviolet light is too large to extract the electrons bound in the metal.
B) the frequency of the ultraviolet light is too large to extract the electrons bound in the metal.
C) the speed of the emitted photoelectrons is too large.
D) the speed of the emitted protons is too large.
E) None of the above is true.