$5.$For automotive suspension systems, the advantage of coil springs over leaf springs is:

A$)$ Better color consistency

B$)$ Improved electrical conductivity

C$)$ More consistent force distribution and shock absorption

D$)$ Higher light emission under compression

$6.$The term "Square and Ground" end in a spring refers to:

A$)$ The aesthetic design of the spring ends

B$)$ The electrical grounding capabilities of the spring

C$)$ The end coils being squared off and ground flat for stability

D$)$ The ability of the spring to glow when squared