Sarah bought 2 boxes of large paper clips with 100 paper clips in each box. Tammy bought 3 boxes of colored paper clips with 50 paper clips in each box. Which expression shows how many more paper clips Sarah bought than Tammy? A
(2 × 100) – (3 × 50)

B
(3 × 100) – (2 × 50)

C
(2 + 100) – (3 + 50)

D
(3 + 100) – (2 + 50)