કયો રોગ હૃદય સાથે સંબંધિત નથી? A. પેટુ B. હૃદ્-સ્નાયુરુગ્ણતા C. રોહિણી D. હૃદ્-સ્નાયુ ભંગાણ

Aneurysm (a bulge in an artery wall), cardiomyopathy (disease of the heart muscle) and myocardial rupture (a tear in the heart wall after a heart attack) relate to the heart and blood vessels. Diphtheria is a bacterial infection of the throat and nose, so it is not a heart ailment.