I wrote in part:
Similarly, the Open Document License has free options A and B. Enabling them renders the licence non-free; the fact that they may be enabled later renders it non-copyleft.
Typo alert!
That's /non/-free options A and B in the first line, as the second line states. In fact, given the second line, just delete the word "free" in the first line:
Similarly, the Open Document License has options A and B. Enabling them renders the licence non-free; the fact that they may be enabled later renders it non-copyleft.
-- Toby