False. One must eat from many different food groups because each food group offers different kinds of nutrients in moderation.
The correct option is B.
Family life cycle refers to the emotional and intellectual stages that one passes through from childhood to retirement age as a member of a family. There are five phases of family life cycle, these are: Independence, marriage, parenting, launching of adult children and retirement. <span />
6mg per Kg
115 lb = 52.16kg
if 6 mg per 1 kg, to find for 52.16 kg, you multiply by 52.16 = 312.9mg
SO for 115 lb person = 312.9 mg