What implies that something may not happen? a. if i had a few dollars i'd buy us some ice cream sandwiches b. i don't have enough experience so i can't be a lifeguard this summer c. since we're out of eggs i'll just have oatmeal instead

A, because it says if, which is implying that it is still possible.

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.