x divided by 4 + 5 = 1 64 divided by 4 is 16. Adding 5 to it does not equal to 1 10 divided by 4 is 2.5. Adding 5 to it does not equal to 1 24 divided by 4 is 6. Adding 5 to it does not equal to 1 The same goes with answer D. It does not equal to 1. If the final result was really 1, the answer should be -1. If you accidentally typed in the wrong ‘final result’, please provide the fixed typo in another post or under the comments. Thank you