Matter can be altered in many different ways. For example, what are all ways you can change a piece of binder paper? Think creatively! (Please actually help me, I’m not that creative)

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.