Question

what does the phrase
erves of steel\ mean in this part of the selection? a a nervous and cautious attitude b control of the steel parts of the bike c an ability to stay calm under stress d hard steel plates in the body for protection motocross is a form of motorcycle racing held on an outdoor track. racers ride the same lap, over and over. the lap has jumps, dips, turns, hills, and bumps. riders use the uneven terrain to perform stunts for points. the more difficult the stunt, the more points they get. a difficult stunt might be catching air, flipping your bike on its side, then back straight before landing. the first person to cross the finish line and score the most points wins. it takes skill, strength, and nerves of steel to ride at great speed, stay in control, and win a race. usually there are a few crashes and some broken bones. its not the safest sport.

Explanation:

The phrase "nerves of steel" is an idiom. In the context of motocross - a high - stress and dangerous sport, it refers to the ability to remain calm under pressure.

Answer:

C. an ability to stay calm under stress