Johnson Inc. produces leather handbags. Johnson Inc. estimates it will use 3,500 square meters of leather in production in August, and 3,750 square meters of leather in production in September. Johnson Inc.'s leather inventory policy is 30 ________ square meters.
1) 3,425 square meters
2) 3,500 square meters
3) 3,575 square meters
4) 4,625 square meters