Match the nuclei with their correct designation.

Explanation

A - q B-r C - p D -t E -s
(A) Isotopes have same atomic number but different mass number
(B) Isotones have same number of neutrons but different atomic number
(C )Isobars have same mass number but different atomic number
(D) Isosters have same number of atoms and valence electrons
(E) Isodiaphers have different atomic number and mass number but the same neutron excess `""_(19)^(39)K` and `""_(9)^(19)F (A - 2Z = 1), ""_(92)^(235)U and ""_(90)^(231)Th (A -2Z = 51)`