Help please

Given the sets M = {5, 6, 7, 8, 9} and N = {6, 8, 10, 12, 14}, the set M∩N is identified by which notation below?


A- {6, 8}


B- {5, 6, 6, 7, 8, 8, 10, 12, 14}


C- {5, 6, 7, 8, 9, 10, 12, 14}


D- ø