It is the easiest and simplest type of intercom installation​

the answer is a

mark branliest

explanation:

the answer to your question is the introduction, because the main text is the body paragraphs, and the table of contents is used to locate paragraphs, and the conclusion is where you wrap up all your thoughts in the end.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.

obama was told in early july 2004 that he was chosen to deliver the address, and he largely wrote the speech himself, with later edits from the kerry presidential campaign.

a i thinkmark me brainliest