A salesperson is hired with a commission structure that allows for a 5% commission payment. This can be modeled by the function P(c) = 0.05c, where c is the sales amount on which commission is paid. The commission only applies for all sales above $7,500 in a single month. The function c(t) = t – 7,500, where t is the total sales for the month, can be used to model the situation. Which function can be used to find the commission payment for a month in terms of total sales?

P(c(t)) = 0.05(t – 7,500)
P(c(t)) = 0.05t – 7,500
P(c(t)) = 0.05(c – 7,500)
P(c(t)) = 0.05c – 7,500