Perceptual speed is ability to quickly and accurately make simple discrimination's in visual stimuli. <span />
That’s not always true a peer could be a teacher or a life coach someone that helps you when you need it
A.) staying free of disease (physical)
B.) reflecting about yourself (mental)
C.) getting 8-10 hours of sleep each night (physical)
D.) engaging in 30-60 minutes of physical activity every day (physical)
Since B is a mental activity...
The answer = B. reflecting about yourself
Good Luck!