What does alignment and periodic mean

Read this excerpt from "birdfoot's grampa.” the old man must have stopped our car two dozen times to climb out and gather into his hands the small toads blinded by our lights and leaping, live drops of rain. which line from the excerpt best reveals the setting? a must have stopped our car b two dozen times to climb out c the small toads blinded d by our lights and leaping,

“i didn't know that cheshire cats always grinned; in fact, i didn't know that cats could grin.” “they all can,” said the duchess; “and most of 'em do.” “i don't know of any that do,” alice said very politely, feeling quite to have got into a conversation. “you don't know much,” said the duchess; “and that's a fact.” what is the effect of the short sentences on the dialogue? they make the dialogue smooth and serene. they make the dialogue lively and humorous. they make the dialogue formal and elegant. they make the dialogue into a song.

According to eric shlosser’s introduction to fast food nation what is his book primarily about?