Answer:
Blue is the colour of the mind and is essentially soothing; it affects us mentally, rather than the physical reaction we have to red. Strong blues will stimulate clear thought and lighter, soft blues will calm the mind and aid concentration. Consequently it is serene and mentally calming.
Explanation:
http://www.colour-affects.co.uk/psychological-properties-of-colours
Excersise and eating healthy are the two main things
The answer to your question is B