Tom needs to buy ink cartridges and printer paper. Each ink cartridge costs $30. Each ream of paper cost $5. He has $100 to spend. Which of the following inequalities may be used to find the combinations of ink cartridges and printer paper that he may purchase?
A. 30c + 5p < 100
B. 30c + 5 p < 100
C. 30c + 5p > 100
D. 30c + 5p > 100
