Sebastian signed up for a streaming music service where there's a fixed cost for monthly membership and a cost per song downloaded. His total cost per month is given by the equation c = 1.25x + 4.99, where a represents the number of songs he downloads and c represents the total cost, in dollars and cents. What is the meaning of the c-value when x = 1?The cost to use the service for one month if zero songs are downloaded.The total cost per month assuming one song is downloaded.The cost to download 100 songs.How much the streaming service charges per downloaded song.