A certain Internet service provider charges a base fee of $5.95 per month. Use in excess of 10 hours per month is charged by the minute at a rate of $0.75 per hour. If Sarah can spend at most $9.50 per month on Internet service, then to the nearest minute, what is the maximum amount of time that she can use per month if she subscribes to this Internet service provider?

A. 12 hr 36 min
B. 12 hr 40 min
C. 14 hr 35 min
D. 14 hr 44 min
E. 15 hr 28 min