Which sentence contains a noun clause?

Based on the cause-and-effect relationship in this sentence, what is the meaning of the word revert? the brownies kali made using a new recipe were too dry, so she reverted to her original recipe. a) to alter or change completely; revise b) to dispose of or remove; to throw away c) to prepare for something; assemble or make d) to go back to a previous state or practice

Which of the following story descriptions most directly shares themes with the passage above

What is the message? how does langston hughes convey the message in this poem?