Read the following premise and pick the correct choice. Then, respond with which of the choices is correct.
Premise: The friends' debate dragged on interminably.

Choice 1: The friends saw eye to eye.
Choice 2: The friends were splitting hairs.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The friends were splitting hairs. (This means they were arguing about trivial matters and not coming to an agreement.)