Which of the following statements about Double Ninth Festival is NOT true?
A.
It’s on the 9th day of the 9th lunar month (usually falls in October in the Gregorian calendar).
B.
In an ancient and mysterious book Yi Jing , or The Book of Changes , number "9" was thought to be Yin , meaning feminine or negative.
C.
The Double Ninth Festival is also called "Height Ascending Festival".
D.
Younger generations will bring elder ones to suburban areas or send gifts to them on this day.