Arrange all elements of group $1$ in increasing order of their ionic radius.
- A$Li^{+} < Na^{+} < K^{+} < Rb^{+} < Cs^{+} < Fr^{+}$
- B$Fr^{+} < Cs^{+} < Rb^{+} < K^{+} < Na^{+} < Li^{+}$
- C$Li^{+} < K^{+} < Na^{+} < Rb^{+} < Fr^{+} < Cs^{+}$
- D$Na^{+} < Li^{+} < K^{+} < Cs^{+} < Rb^{+} < Fr^{+}$
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