Write the next sentence in this paragraph:

How to tell if you're going bald
Take a good hard look at your head in the mirror.
Just because you see hair on your pillow or in the shower drain, doesn't mean you're going bald. Look at the hair on your head.

Possible answers:
(1). Make sure it's about shoulder length. If it's not, make sure it's not too short.;
(2). If you have fine and straight hair, that means a normal-sized pin prick won't hurt your head. If your hair is clean and straight, however, it means a good sized dose of cervical cleaner will change the shape and direction of your hair.;
(3). If it is uneven, your hair will be thicker and lighter. If it is removable, you'll see hair pulling down.;
(4). Receding hair lines may be a sign you're " going bald. " patchy hair loss may be associated with other causes.;
(4).