In the current era,$\underline{X \%}$ of all bird species and $\underline{Y \%}$ of all amphibian species in the world are facing the threat of extinction.
- A$X = 12 \%, Y = 32 \%$
- B$X = 23 \%, Y = 35 \%$
- C$X = 32 \%, Y = 10 \%$
- D$X = 10 \%, Y = 12 \%$
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