Which of the following is the best reason that it might be difficult to predict an individual’s future health issues?
a.
Health issues are determined by environmental factors, which are subject to change.
b.
Health issues are determined by a complex interaction of environmental and genetic factors, which is difficult to predict.
c.
Health issues are determined by genetic inheritance, which is not fully understood.
d.
Health issues depend on lifestyle choices, which are not always predictable.