A sentence below is part of what I transcribed, listening to a radio program. The blank below is where I got stuck. The commentator, an educated American woman, is talking about the word “rat race.” Which, #1 or #2 below, do you think is more appropriate, when written down? 1. endless 2. endless, The "rat race" refers to a tiring, seemingly ( ) routine in an often competitive, busy environment. I chose #1, but I’m not sure if it is correct.