The difference between DOT 3 and DOT 4 brake fluids is
a) DOT 4 fluids have a higher boiling point than DOT 3 fluid
b) DOT 4 fluids have a lower boiling point than DOT 3 fluid
c) DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
d) DOT 4 fluid is more resistant to freezing than DOT 3 fluid






