Take a message to the two sessions and leave a message directly.

Some websites have launched activities such as "I say a word to the Prime Minister", "I send a word to NPC and CPPCC" and "NPC and CPPCC through train", which shows that citizens have the democratic right to participate in state management and discuss state affairs. Many netizens went from "watching" to "participating", indicating that as the masters of the country, they should care about state affairs and actively participate in political life, so ① ④ is the correct option; ② Option: China citizens cannot directly manage the country; (3) Optional citizens cannot exercise their rights at will, but should exercise their rights within the scope permitted by law and exclude them.

So choose D.