The appropriate response is Pharmacy Technician Certification Board or the PTCB. It is a PC based exam controlled at Pearson VUE test focuses across the country. PTCE was created to decide if people have shown the learning important to rehearse as drug store experts.
The answer is source B because it has a listed author who is an expert and it is the governments organization website which are more reliable that a .com website. Source A does not even list the author so you do not know who wrote it could be anyone.
I need a selection..of choices you have to choose from
Answer: Electrocardiography
Explanation: