Bobby Backache is a customer service representative in a call center. Bobdy nas a permanent injury to his back. He is only able to sit for one hour at a time, and then he seeks relief by standing for at least $30$ minutes. Unfortunately, he works in a cubicle with a computer and headset for $8$ hours a day. Which of the following might be a reasonable accommodation for Bobby under ADA?

Provide Bobby with $30-$minute breaks after every hour of sitting.

Transfer Bobby to another position in which he is not tied to a cubicle and can stand more frequently.

Purchase Bobby a desk and chair which are adjustable by height.

Pair Bobby with a co$-$worker who can sit at his desk and type on the computer while Bobby is standing.