[css3-fonts] unicode-range and unicode normalization

What unicode normalization (http://unicode.org/reports/tr15/) must be
applied
to the characters in an HTML document before matching against
the unicode-range
descriptor (http://dev.w3.org/csswg/css3-fonts/#unicode-range-desc)?

A. No normalization at all. All the codepoints are checked against
unicode-range as-is.
B. Undefined. Whether to apply normalization is up to UA.
C. Must be normalized to NFC
D. Must be normalized to NFD
E. Must be normalized to NFKC
F. Must be normalize to NFKD

In my opinion, A (or B) is the most realistic choice, seeing that Chrome 6,
Safari 6, IE8, and Opera 10
don't normalize stylesheets. (Firefox 6 doesn't seem to be working in this
respect.)
http://www.w3.org/International/tests/tests-html-css/tests-normalization/generate?test=10&serveas=xml&format=xhtml5

Yuzo

Reference:
http://www.w3.org/International/tutorials/tutorial-char-enc/