I would say that the parallel list here is C) a lost puppy, a colored poster, and a happy boy.
This is because all words have an article <em>a, </em>and an adjective in front of them, so they are parallel.
Answer:
yo no sé inglés y tú por qué no entiendo nada
1 you have to keep you dogs on a lead when in the garden.
2 it looks like nobody used this room in years.
3 don't let me warn you agin.
4 we need to put the books back they did not tell us to take them home.
5 peter told me he was going to take the package later.
6 me and the employees are thinking about new rules.
Answer: why
Explanation: just why so Much