The answer would have to be D. Noise
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I think the answer would be c
THRZ - Target Heart Rate Zone
It is the level of intensity of cardio during cardio exercise and has different ranges. 60% to 70% ,low intensity this is a warm up for beginners. 70%-80% moderate intensity, it is in this zone that improves body's ability to transport oxygen throughout the body and conditioning one's heart.80% - 90% it in this zone also that allows us to burn more calories.
Couples only can choose to adopt if they are infertile.
F....when recording blood.....
