Conclusion: Museums would be rash to relax those standards.
Premise: since results of preliminary tests indicate that gesso, a compound routinely used by Renaissance artists to help paint adhere to the canvas, is unable to withstand significant variations in humidity.
Bold 1: paint is the most sensitive substance in these works
Bold 2: museums can reduce energy costs without risking damage to these paintings
Bold 1 and 2 appear before premise and conclusion. Hence both are counterpoints.
Option
...
Premise: since results of preliminary tests indicate that gesso, a compound routinely used by Renaissance artists to help paint adhere to the canvas, is unable to withstand significant variations in humidity.
Bold 1: paint is the most sensitive substance in these works
Bold 2: museums can reduce energy costs without risking damage to these paintings
Bold 1 and 2 appear before premise and conclusion. Hence both are counterpoints.
Option
...




