Answer:
I think it is C, a CD-ROM.
Explanation:
That is because a CD-ROM is just a literal CD. And out of all of these a CD is the only piece of technology you can listen to and play back.
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The fourth one is the answer
“Birmingham Sunday” discusses the deaths of all four girls, while “Ballad of Birmingham” focuses on the death of one girl.
In "Birmingham Sunday" Richard Farina uses verses 2-5 to identify the name of each of the four girls, giving them their own verse in the song. In "Ballad of Birmingham" the mother refuses to let her child go down to the protests happening in the streets for fear of the violence. She sends her child to church instead. The church, however, is bombed and the daughter dies.