The cost of Phone Plan Q is $10 per month plus $0.14 per minute. Phone Plan R costs $7 per month plus $0.17 per minute. If Anthony talks on the phone for 70 minutes in a month, which plan is less expensive for Anthony, and by how much?

A. Plan Q by $0.90

B. Plan R by $0.90

C. Plan Q by $1.10

D. Plan R by $1.10