I purchased an Arduino Uno. I am trying to set it up, but when I got to the "port" on my MAC, there is no option to select anything related to my board. The only connections the port tab allows me to connect to is the bluetooth incoming port, which is not correct because it gives me errors when I try to set up the UNO to block on and off for 1 second. I know this is the legit Arduino Uno, so why is the bluetooth not connecting?
I assume you have installed Arduino IDE on your mac and connecting board to mac using USB cable. Many time it happens due to driver or OS reason. Just plug the Arduino to another USB port and it should work.