Directions: Choose appropriate meaning of the words in bold as per their contextual use.

We concur that this is not a simple matter, but we must act quickly nonetheless.

To concur means to agree or have the same opinion. When people concur, they are admitting the same point or reaching consensus. 'Admit' fits here - they're acknowledging the complexity together. 'Decipher' means decode, 'commit' means pledge or do, and 'announce' means publicly declare - none capture the sense of agreement.