Madeline (S24, P23, TR33, C29) has completed writing her paper. She then proceeds to review her paper for errors and to ensure that she has properly cited and referenced her sources. This task requires Madeline to

Bis the answer to this question

Some connecting rods have to lubricate the cylinder wall or piston pin. the answer is letter d. graphite coating can be a major  additive to many  coating  systems and things such as connecting rods.  it functions as a refractory, lubricant, thermal conductor, and electrical conductor for a machine or thing to enhance its work.