The call for public engagement with the unthinkable is especially germane in this moment of still-uncontrolled pandemic and economic crises in the world’s most technologically advanced nations. Not very long ago, it was also unthinkable that a virus would shut down nations and that safety nets would be proven so disastrously lacking in flexibility.

What does the underlined word “germane” in Paragraph 3 probably mean?

A．Scientific.	B．Credible.
C．Original.	D．Relevant.