Los cladogramas son siempre correctos? que pasa si no lo son? ​

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Ineed to find the answer of this question because i dont understand it

Adilute aqueous potassium nitrate solution is