Select the most appropriate idiom to fill in the blank.

The family's meeting on property dispute begins today and I'm just sitting down with a cup of coffee, enjoying ___________.

the calm before the storm

The most appropriate idiom to fill in the blank is the calm before the storm.

This idiom refers to a period of peace or quiet before a period of trouble or conflict. In the context of the sentence, it means that the family's meeting on the property dispute is likely to be a difficult and emotional experience, so the speaker is enjoying a moment of peace before the storm.

The other options are not as appropriate.

• The better of means to defeat or surpass someone. It does not make sense in the context of the sentence.
• The corridors of power refers to the places where important decisions are made. It does not make sense in the context of the sentence.
• The bottom line refers to the most important or essential part of something. It does not make sense in the context of the sentence.