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
  $X = 10 \%, Y = 12 \%$