Hypertension is called "the silent killer" because
a. it kills people while they sleep
b. there is no treatment for it
c. it generally has no symptoms
d. if affects the voice box first

The correct answer is C.

A silent killer is a medical condition with no obvious or noticeable symptoms. Some examples of the deadliest silent killers are : heart disease, cancer, hypertension and diabetes.

Hypertension or high blood pressure has no symptoms indicating that something is wrong. People suffering from this condition lead a normal life without realizing they are affected. Hypertension develops slowly and over a long period of time, some people may misunderstand the signs. There is no cure for hypertension but it can be helped and regulated by lifestyle changes and medication.

To prevent hypertension, one must develop awareness of this condition and its risk factors.

assuming that you are talking about the one in egypt: hecka oil

explanation:

b) brahmans   is nomadic society