$A$ nurse measures the blood pressure of a seated patient to be $190 \,mm$ of $Hg$.
- AThe blood pressure at the patient's feet is less than $190 \,mm$ of $Hg$.
- BThe actual pressure is about $0.25$ times of atmospheric pressure.
- CThe blood pressure at the patient's neck is more than $190 \,mm$ of $Hg$.
- DThe actual pressure is about $1.25$ times of atmospheric pressure.
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