straigthen hair or culry

AnonymousShould I straighten my hair or leave it curly?

What is the difference? Is it possible to curl hair?
Should I straighten my hair or curl it?

Is this explanation correct?
Your hair is either curly or straight, there is no 3rd option. It would only work if there was a third option.

What does the person mean by option?

There is a third option — wavy hair.

Since there is a 3rd option it is correct to ask : Should I straighten my hair or curl it? Is option the word to use or 'alternative'?

It is possible to straighten naturally curly or wavy hair. It is possible to add waves or curls to straight hair.

Is curl as a verb correct? to curl hair?

Is option the correct word here or is 'alternative' better?

If you use a curling iron, you are curling your hair. If you use a flat-iron, you are straightening your hair.