Considering Sandra and Kate's cell phone plans, which of the following statements is correct?
A) Sandra's plan has a lower base monthly cost, but Kate's plan has a lower per-minute charge for additional minutes.
B) Sandra's plan has a higher base monthly cost and a higher per-minute charge for additional minutes compared to Kate's plan.
C) Sandra's plan has a higher base monthly cost, but Kate's plan has a higher per-minute charge for additional minutes.
D) Both Sandra and Kate have the same total cost for their plans when considering the base cost and additional minutes.