A child with hypertension and congenital heart disease (CHD) is being counseled. Which activity should the nurse advise the parents to avoid?

Correct option is B

Children with HTN and CHD should avoid strenuous physical activity and competitive sports because it increases cardiac workload and BP.
Explanation of options: (a) ✘ Mild activity improves health, usually encouraged. (b) ✔ Correct; competitive sports can worsen HTN/CHD. (c) ✘ School attendance is safe if health stable. (d) ✘ Social play is safe unless very strenuous.