A standard train ticket in a certain city costs 3 per ride. People who use the train also have the option of purchasing a frequent-rider pass for 18.75 each month. With the pass, a ticket costs only 2.25 per ride. How many train rides in a month make the frequent-rider pass a better deal than standard train tickets? a. 26 or more rides

b. 24 or more rides

c. 25 or more rides

d. 27 or more rides