In general, the average heartrate of all patients is 101 with a standard deviation of 21.0777. a new cardiovascular medication was administered to a single group of subjects. The subjects heartrate (bpm) were recorded above after the medication was administered. The standard deviation of the sampled heartrate was 21.0777. Based on this information, the sample mean is expected to be ---, give or take ---

A. Expected to be 101, give or take 7.4521.

B. Expected to be 101, give or take 5.4302.

C. Expected to be 101, give or take 21.0777.

D. Expected to be 110.375, give or take 5.4302.