LuckyUCalled is a company that offers several cellular service plans. Plan A: charges $10 service fee, $2 per minute, $2 GB storage with total cost restricted to $400. Plan B: No service fee, $5 per minute, $1.50 per GB with total cost restricted to $300. Plan C: $40 service fee, $1 per minute, $1 GB Storage with total restricted to $500. Based on your past history, you expect to use your phone anywhere between 100 and 300 minutes per month and it usually involves a data transfer of anywhere between 20 GB and 100 GB. Which is the best offer?