Sofia ordered sushi for a company meeting. They changed plans and increased the number of people attending the meeting, requiring at least 100 pieces of sushi in total. Sofia had already ordered and paid for 24 pieces of sushi, so she needs to order additional sushi. The sushi comes in rolls, with each roll containing 12 pieces and costing $8. Let 'r' represent the number of additional rolls Sofia orders.
a) 12+24r≤100
b) 12+24r≥100
c) 24+12r≤100
d) 24+12r≥100
