Frown in front of the mirror first, let two eyebrows closer. At this time, there will be a few longitudinal wrinkles between your eyes. Count, see how many longitudinal wrinkles there are, and then look at the test results.
A. There is a clear vertical line
B. There are two vertical lines
C. There are three vertical lines (one in the middle is very long)
D. There are more than four vertical lines