What is the least common Multiple (LCM) of the following pair of numbers? select your answer inside the box and write the letter of the correct answer on the blank before the number. 17.) 3 and 9 18.) 6 and 8 19.) 25 and 30 20.) 18 and 24 A.24 B. 40 C. 72 E. 9 0.150​