Which statement correctly identifies a difference between the function of most arteries and veins?

A. Arteries carry red blood cells, whereas veins carry white blood cells.

B. Veins carry red blood cells, whereas arteries carry white blood cells.

C. Arteries carry blood to the heart, whereas veins carry blood away from the heart.

D. Veins carry blood to the heart, whereas arteries carry blood away from the heart.

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=