An electrocardiogram is a test that doctors use to assess cardiovascular health. The image below shows data given by an electrocardiogram.

What type of data is recorded by the electrocardiogram?

A.
the electrical activity of the heart
B.
the amount of oxygen in the blood
C.
the sound of the heart beating
D.
the force from the heart beating

The answer is A. An electrocardiogram (EEG) measures the electrical activity of the heart to see if there’s any irregularities in the heartbeat. Irregularities in your heartbeats can be caused by many things including blockages which can cause strokes and heart attacks. It’s a good idea for students or any athletes to get an EEG as part of their physicals to rule out any heart issues.

The category is the thing that is most simmilar throughout a period

Can you write it in english