![quiz 11oct](https://www.gkseries.com/blog/wp-content/uploads/2021/10/Copy-of-Online-Quiz-Made-with-PosterMyWall-24.jpg)
A) Second Sunday of October
B) 10 October
C) Second Saturday of October
D) 09 October
Explanation: World Mental Health Day is observed every year on 10 October globally for global mental health education, awareness, and advocacy against social stigma.