Which of the following statements are correct?

(A) For a pair of nucleons, the force is attractive for distances larger than 0.8 fm.
(B) The density of a nucleus is dependent of A.
(C) Nuclides with same neutron number but different atomic number are called isotones.
(D) $β^+$ decay process is the conversion of neutron to proton.
(E) Plutonium undergoes fission with slow neutrons.

Choose the correct answer from the options given below:

(A), (C) and (E) Only

The correct answer is Option (3) → (A), (C) and (E) Only