MO : D
a) If a person has low blood cholesterol, then that person's risk of fatal heart disease is low. (there can be other reason as well)
b) Smoking in moderation can entail as great a risk of fatal heart disease as does heavy smoking (eliminated as we are no where comparing smoking)
c)a high-cholesterol diet is the principal cause of death in North America (too strong too say principal cause)
d) The only way that smoking increases one's risk of fatal heart disease is by influencing the levels
...
a) If a person has low blood cholesterol, then that person's risk of fatal heart disease is low. (there can be other reason as well)
b) Smoking in moderation can entail as great a risk of fatal heart disease as does heavy smoking (eliminated as we are no where comparing smoking)
c)a high-cholesterol diet is the principal cause of death in North America (too strong too say principal cause)
d) The only way that smoking increases one's risk of fatal heart disease is by influencing the levels
...





