Go through the following statements.
I. Blood cannot get from an artery into a vein without passing through at least one capillary bed.
II. Blood cannot flow from point A to point B in a vessel unless the pressure is higher at A than at B.
III. Blood capillaries has no muscle.
IV. Glucose is carried from digestive tract to liver by Hepatic portal vein.
How many of the above statement(s) are correct?

Options

A. 1
B. 2
C. 3
D. 4

Answer

C