Why are commas, rather than dashes or parentheses, used in this sentence? a. commas are being used to set off an appositive. b.commas are being used to set off a clause using which, who, whom, or whose. c.commas are being used to set off a longer or less-related parenthetical aside. d.commas are being used to set off a brief, closely-related aside.

both the address and the poster use diction to convey their message. diction is defined as a style of writing or speaking based on the types of words chosen in order to send a message. parallelism is when a similar sentence structure is used for several sentences on a text; roosevelt's address doesn't follow that. repetition has to do with repeating a word or sentence in order to emphasize and idea, however neither the poster nor the address use repetion. finally, the address doesn't use images to convey a message.

i believe the answer is b. we