In hypertrophic obstructive cardiomyopathy (HOCM) with pre-existing left bundle branch block (LBBB), which intervention is considered suitable?
a) Implantable cardioverter-defibrillator (ICD) placement
b) Coronary artery bypass grafting (CABG)
c) Dual-chamber pacemaker implantation
d) Ablation therapy for accessory pathways