Which of the following pairs of nucleides are isodiaphers ?

Isodiaphers have same difference of number of neutrons and protons or (A - 2Z) must be same
$$\begin{gathered} \mathrm{in} \mathrm{option} 4 \\ {}_{25}{}^{55}\mathrm{Mn} ,\mathrm{A}-2\mathrm{Z}= 55-50=5 \\ {}_{30}{}^{65}\mathrm{Zn}, \mathrm{A}-2\mathrm{Z}=65-60=5 \end{gathered}$$