What would account for dimmesdale's sudden change in chapter 20 of the scarlet letter?

Choose the correct type of literary text for the statement. if both types apply, be sure to choose the answer that includes both types. use(s) imagery? 1: poetry 2: poetry and prose 3: prose

Could someone me with this question?

In a series of experiments, hershey and chase radioactively labeled dna and protein in viruses and then used labeled viruses to infect bacteria. hershey and chase's experiments definitively showed that a. dna and not protein is the genetic material. b. dna and protein work together as a cell's genetic material. c. protein and not dna is the genetic material. d. neither dna nor protein act as a cell's genetic material