Classify the following activities as being mostly related to one of the 20 elements of RBPS. Although many elements may be involved, give only the single most applicable element. a) All contractors on-site are required to watch a video with an overview of the plant process safety and may be required to complete additional safety training depending on the type of work. b) A chemical plant is audited on a regular basis by the corporate safety personnel. c) A management system is developed to ensure that all replacement equipment is identical in function to the original equipment. d) When the electrical code changes, the plant staff reviews the changes to ensure that the plant meets the revised code. e) Leading and lagging metrics are established to gauge process safety performance