Choose the correct meaning of the following idiom:

At daggers drawn

at enmity

The correct meaning of the idiom "at daggers drawn" is at enmity. It means that two people or groups are in a state of extreme hostility or conflict. The idiom is thought to have originated from the practice of carrying daggers, which are small, sharp weapons. If two people were "at daggers drawn," it meant that they were ready to attack each other with their daggers.

The other options are incorrect. "Real cause" means the actual reason for something. "Puzzled" means confused or perplexed. "At friendship" means in a state of friendship or goodwill.