15. according to the preamble, who joins together to establish a constitution?

d

explanation:

there is no photo, therefore i can not answer your question.

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.