Determine whether the following statements are True $(T)$ or False $(F)$:
$(a)$ The atomic radii of the elements of the second transition series $(4d)$ are larger than those of the first transition series $(3d)$.
$(b)$ $Cr^{+}$,$Mn^{2+}$,and $Fe^{3+}$ have the same electronic configuration.
$(c)$ $Cr^{+}$,$Mn^{2+}$,and $Fe^{3+}$ have the same $d^5$ electronic configuration.

• A
  $(a) T, (b) T, (c) F$
• B
  $(a) T, (b) F, (c) T$
• C
  $(a) F, (b) T, (c) F$
• D
  $(a) T, (b) T, (c) T$