*XXX X х х 1 4 5 7 8 9 10 Plant Heights (cm) A class planted plants and observed how high each plant grew. The frequency table displays the results. Accord the frequency table, how many plants were planted? A) 18 B) 19 C) 20 D) 21​

XXX X х х 1 4 5 7 8 9 10 Plant Heights cm A class planted plants and observed how high each plant grew The frequency table displays the results Accord the frequ class=