According to the Quantum Theory of Radiation

According to the quantum theory of radiation,

A) electromagnetic fields are really made of particles.
B) the total quantity of energy that an electromagnetic field can contain must be less than a certain maximum value.
C) an electromagnetic field can have only certain values of total energy and no other values.
D) radiation goes through only one of the two slits in the double- slit experiment with radiation.
E) electromagnetic fields must vibrate only at one particular frequency.