Which organs are most damaged due to hypertension?

Select the correct option for high blood pressure.

Select the correct option regarding the disorders of the circulatory system.

Select the correct option for $Angina$ $pectoris$.

Given below are two statements regarding silent heart attack.
Statement $I$: This type of heart attack shows symptoms like chest pain and shortness of breath.
Statement $II$: In this type of heart attack,usually the person shows very mild symptoms and thus it is ignored.
In the light of the above two statements,choose the correct answer from the options given below.

Hardening of the arterial wall is called . . . . . . .