Consider the Following Image Representing an Atom

Consider the following image representing an atom. Which of the following would describe the net effect of the emission of a β particles by this nucleus?

A) The number of protons would increase.
B) The number of neutrons would decrease.
C) The mass number of the product nucleus would the same as that shown.
D) The atomic number of the product nucleus would be one larger than that shown.
E) All of the above describe the net effect of this type of emission.