B (i'm actually not that sure though) because A is definitely wrong, C is not correct, and D is fine i think
Hi there!!! Nice questions.
<span>What is a person called who commits an act of violence?..
</span><span>Assailant</span>
What property makes the normal pacemaker region of the heart function as a pacemaker?
The property of the normal pacemaker region is able to provide a normal setting for the heart to beat. It allows the heart to beat at a regular rate.
