Read the list: bad, badly
how are these words related
a. they are both descriptive words
b. they are both adjectives
c. they are antonyms
d. they are both adverbs

The correct answer is alternative A.

The word bad is an adjective, and badly an adverb. But both have something similar which is being descriptive words, meaning that they show the reader or listener whether the thing was good or bad, or if something was done well or badly.

So even though they aren't the same regarding to gramatics, they are used with the same purpose.

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.