What Is the Formula of Humanity, as Stated in Chapter

What is the Formula of Humanity, as stated in Chapter 11?

A) Act only on maxims whose universal acceptance would have better consequences than the acceptance of any alternative maxim.
B) Always act so as to treat humanity with respect rather than as a means, including both yourself and others.
C) Act only on maxims whose universalization would not reduce any person to the status of a thing.
D) Always act so as to treat humanity, whether in your own person or someone else's, always as an end in itself and never merely as a means.