Which rhythm would you expect to see a rate typically between 60-100 bpm?

The rate typically between 60-100 beats per minute corresponds to a normal sinus rhythm, which is the heart's normal rhythm that originates from the sinoatrial (SA) node. In a normal sinus rhythm, the heart beats effectively and maintains a consistent rhythm, allowing for adequate blood flow and oxygen delivery to the body. This rhythm is important for maintaining physiological functions and is characterized by a regular pattern of electrical activity.

In contrast, arrest rhythms indicate the absence of effective heart beat, which would result in a rate of zero, and ventricular fibrillation exhibits chaotic electrical activity that leads to ineffective heart contractions and an extremely rapid rate, typically not conducive to life. Atrial flutter, while it can have a range of rates, often presents with rates that exceed the normal range, particularly if it is rapid. Therefore, normal sinus rhythm is the correct choice as it is the only one which consistently operates within that defined range of 60-100 bpm.