Two companies offer different charges for text messaging. company 1 charges $0.04 per text message, while company 2 charges rates according to the table.

which company offers the cheapest plan for up to 500 text messages?

a) company 1 because the cost of 500 text messages is $15.

b) company 1 because the cost of 500 text messages is $20.

c) company 2 because the cost of 500 text messages is $25.

d) the costs for both plans are exactly the same for 500 text messages.