The table shows the cost of downloading songs: {Number of songs = 0(Costs $0), 1(Costs $1.25), 2(Costs $2.50), 3(Costs $3.75), 4(Costs $5.00)} What does the rate of change mean in this situation? The following responses are:
A) The cost increases $2.50 for each additional song that is downloaded.
B) The cost increases $0.25 for each additional song that is downloaded.
C) The cost increases $5.00 for each additional song that is downloaded.
D) The cost increases $1.25 for each additional song that is downloaded.
