B is your answer, it can indicate when you are working above, below, or in your target zone.
A person with clinical depression will experience at least four signs of the disorder for at least two weeks.
The symptoms showing the illness may include: Trouble in concentrating or remembering small details, and making decisions in everyday life.
Also you'll fatigued through out the day, you will get feelings of guilt, worthlessness, and helplessness.
It may also include Insomnia, early-morning wakefulness, or sleeping too much.
Also you lose your focus and there is a loss of interest in things once pleasurable, including sex.
Tendons connect muscles to bones
D is the answer my great garanny has it
