What can the points on be used for?

In writing, an idea map is a writing plan similar to: a)an outline. b)an illustration. c)a conclusion. d)a graphic.

Dylan is of course enormously influential. springsteen, who referred to him as “the father of my country” in his new born to run memoir, is one of many who were once known as “new dylans.” every singer-songwriter with a personal story to tell owes him a debt, and hearing the above lines read or sung aloud, with their knack for internal rhyme, call up inevitable parallels to the dense playful language of rap. –“dylan's nobel prize settles debate: rock lyrics are poetry,” dan deluca which piece of evidence supports the claim that dylan’s rock lyrics are like poetry? he is enormously influential. his lyrics feature internal rhyme. singer-songwriters owe him a debt. someone called him “the father of my country.”

How does the author introduces his idea of fish depletion in the first few pages of world without fish?