42 yrs old man presented with dizziness on standing,SBP falls by 50 mm Hg and HR is 52/min likely cause is -a)  CHFb)  Inferior wall MIc) Pheochromocytomad) Theophylline toxicitye) Sick sinus syndrome: (A) ab, (B) ad, (C) be, (D) ce
Answer is C. None