Dr. Paul Donohue writes a syndicated column in which readers question him on a variety of health topics. Reader C. J. wrote, “Many people say they can weigh more because they have a large frame. How is frame size determined?” Here is Dr. Donohue’s response:

“For a man, a wrist circumference between 6.75 and 7.25 in. [inclusive] indicates a medium frame. Anything above is a large frame and anything below, a small frame.”

Using x to represent wrist circumference in inches, write an inequality or a three-part inequality that represents wrist circumference for a male with the following.

(a) A small frame 

(b) A medium frame 

(c) A large frame