Consider the following elements. Which of the following is/are true about A^′, B^′, C^′ and D^′? A. Order of atomic radii: B^′< A^′< D^′< C^′ B.…

Consider the following elements. Which of the following is/are true about $\displaystyle \mathrm{A}^{\prime}, \mathrm{B}^{\prime}, \mathrm{C}^{\prime}$ and $\displaystyle \mathrm{D}^{\prime}$ ? A. Order of atomic radii: $\displaystyle \mathrm{B}^{\prime}<\mathrm{A}^{\prime}<\mathrm{D}^{\prime}<\mathrm{C}^{\prime}$ B. Order of metallic character: $\displaystyle \mathrm{B}^{\prime}<\mathrm{A}^{\prime}<\mathrm{D}^{\prime}<\mathrm{C}^{\prime}$ C. Size of the element: $\displaystyle \mathrm{D}^{\prime}<\mathrm{C}^{\prime}<\mathrm{B}^{\prime}<\mathrm{A}^{\prime}$ D. Order of ionic radii: $\displaystyle \mathrm{B}^{\prime+}<\mathrm{A}^{\prime+}<\mathrm{D}^{\prime+}<\mathrm{C}^{\prime+}$ Choose the correct answer from the options given below :