Carry brake fluid from the master cylinder to the brake units.
a. double-walled steel lines
b. rubber hoses
c. double-walled steel lines and flexible hosesd. none of the answers listed

C. Double-walled steel lines and flexible hoses

Explanation:

The brake units consists of;

the master cylinder the wheel cylinder the steel lines and hosesthe brake fluid

Double-walled steel lines carry the brake fluid from the master cylinder along the vehicle frame to flexible hoses attached to wheel cylinders.

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  c.sending the first human into space4. which of these space missions involved the deployment of lunar roversa. voyager 15. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar  systemb.safir7.which technology limit the future of space explorationb. scientist must first develop certain technologies before missions can be completed.

Elements that have complete valence shells are found in group 18, also known as the noble gases. these gases possess the stable octet, and are neon, radon, xenon, etc.