The arrows on field lines show the direction of force in an electric field.
Which statement best describes how the arrows are shown?
A. Arrows point away from both charges.
B. Arrows point away from the negative charge and toward the
positive charge
C. Arrows point toward both charges
D. Arrows point away from the positive charge and toward the
negative charge

Given what we know about field lines, we can confirm that arrows point away from the positive charge and toward the  negative charge.

Therefore, since the diagrams used to indicate field lines show that the arrows will point away from the positive charges and towards the negative ones, we can confirm that option D is correct.

To learn more about field lines visit:

link

that scientist would be robert hooke