The correct answer is NCAA and NFHS$.$ The NCAA and the NFHS $($National Federation of State High School Associations$)$ set a new standard for non$-$wood baseball bats with the goal of improving player safety and reducing technology$-$driven home runs and other big hits. Marucci Sports, LLC$,$ made non$-$wood bats, and four of their products were decertified under the new standard for use in high school and collegiate games. Marucci then filed a lawsuit against the NCAA and the NFHS$.$ Explanation: The correct answer is the NCAA and the NFHS$.$ The National Collegiate Athletic Association $($NCAA$)$ and the National Federation of State High School Associations $($NFHS$)$ set a new standard for non$-$wood baseball bats with the goal of improving player safety and reducing technology$-$driven home runs and other big hits. This standard affected Marucci Sports, LLC$,$ which made non$-$wood bats. As a result, four of Marucci's products were decertified for use in high school and collegiate games. Marucci then filed a lawsuit against the NCAA and the NFHS$.$ The NCAA and the NFHS are the correct answer because they are the organizations that set the new standard for non$-$wood baseball bats. The standard was designed to improve player safety and reduce technology$-$driven home runs and other big hits. Marucci Sports, LLC$,$ made non$-$wood bats, and four of their products were decertified under the new standard for use in high school and collegiate games. As a result, Marucci filed a lawsuit against the NCAA and the NFHS$.$ The other options are incorrect because they do not meet the criteria outlined in the question. For example, the Major League Baseball $($MLB$)$ Players Association is not mentioned in the question, and there is no mention of any other organizations involved in setting the new standard for non$-$wood baseball bats. The other options are incorrect because they do not meet the criteria outlined in the question. For example, the Major League Baseball $($MLB$)$ Players Association is not mentioned in the question, and there is no mention of any other organizations involved in setting the new standard for non$-$wood baseball bats. Final answer: The correct answer is the NCAA and the NFHS$.$ The National Collegiate Athletic Association $($NCAA$)$ and the National Federation of State High School Associations $($NFHS$)$ set a new standard for non$-$wood baseball bats with the goal of improving player safety and reducing technology$-$driven home runs and other big hits. This standard affected Marucci Sports, LLC$,$ which made non$-$wood bats. As a result, four of Marucci's products were decertified for use in high school and collegiate games. Marucci then filed a lawsuit against the NCAA and the NFHS$.$