If a diet high in salt-cured foods is an established risk factor for hypertension, then​

A) ​this type of diet is negatively correlated with hypertension.
B) ​this type of diet is frequently associated with hypertension.
C) ​salty foods are identified as a cause of hypertension
D) ​salt restriction may or may not be advised for those at risk of hypertension.

The word "risk factor" implies a frequent association, so choice B is correct. Choice A is incorrect as a negative correlation would indicate that a diet high in salt-cured foods actually reduces the risk of hypertension, which is not the case. Choice C is incorrect as the relationship is only established as a risk factor, but not necessarily a direct cause. Choice D is also incorrect as the established risk factor suggests that salt restriction would be advised for those at risk of hypertension.