The correct option is D Brush daily
∙ Our eyes need right amount of light to be able to distinguish the words on the paper. Insufficient light leads to straining of eyes for a long time. Too bright light also adversely affects our eyes.
∙ Reading in moving vehicles is not suggested as we might strain our eyes continously.
∙ We should not rub our eyes to clean them. Cold water must be used in cleaning our eyes.
However, brushing and flossing daily is done to clean our mouth.