Final answer:
When setting flat pincurls, you can begin at the roots, ends, or in the middle, depending on the desired result and style you want to achieve.
Step-by-step explanation:
The correct answer is option 4) All of the above. When setting flat pincurls, you can begin at the roots, the ends, or in the middle. It depends on the desired result and the style you want to achieve.
For example, if you want more volume at the roots, you can start setting the pincurls there. If you want a more natural look with curls throughout the hair, you can start setting them in the middle. And if you want more defined curls at the ends, you can start setting the pincurls there.