The number of 84 can be expressed as the sum of 54 + 30. Which shows how to use the distributive property to rewrite that sum as a multiple of a sum whose addenda have no common factors greater than 1?

Please explain

A) 2(27 + 15)

B) 3(18 + 10)

C) 5(11 + 16)

D) 6(9 + 5)