How can training divisions ensure participants understand the optimum level of fireground performance during a training evolution? Group of answer choices Through decreasing the importance and scope of the incident command system Through decreasing the amount of time spent on training for less common, high-risk incidents By making sure that level of PPE and crew accountability are equal or better than frontline responses By making sure that rehab/work cycles are not as frequent as they would be during frontline responsesOptical warning lights alert the public of the approach of an emergency vehicle and: Group of answer choices indicate the location of the vehicle at the incident scene. display the regional or individual colors of the organization. allow driver/operator to see people to the side of the apparatus. alert fleet mechanics of issues related to safety, mileage, or age