After Heart Attack, Scar Tissue Develops in the Heart Causing

After heart attack, scar tissue develops in the heart causing a detour of action potentials traveling in the conduction system. In which part of an ECG trace would change be detected?

A) QRS complex because it is the depolarization phase of the majority of the heart muscle
B) PQ interval because it corresponds to travel of the potential in the fibers of the conduction system
C) P wave because the excitation cannot travel backward to atria
D) T wave because scar tissue can't re polarize properly