JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

Consider the following elements.
${\text{Group}} \downarrow \,_{C'\,D'}^{A'\,B' \to {\text{Period}}}$
Which of the following is/are true about $A^{\prime}, B^{\prime}, C^{\prime}$ and $D^{\prime}$ ?

A. Order of atomic radii: $\mathrm{B}^{\prime} < \mathrm{A}^{\prime} < \mathrm{D}^{\prime} < \mathrm{C}^{\prime}$

B. Order of metallic character: $B^{\prime} < A^{\prime} < D^{\prime} < C^{\prime}$

C. Size of the element: $D^{\prime} < C^{\prime} < B^{\prime} < A^{\prime}$

D. Order of ionic radii : $\mathrm{B}^{\prime+} < \mathrm{A}^{\prime+} < \mathrm{D}^{\prime+} < \mathrm{C}^{\prime+}$

Choose the correct answer from the option given below: