Most in U.S. want public health option: poll   LEAD: Japanese researchers find substance combination effective vs. H1N1+   AP sources: Comcast to pay $13.75B for NBC stake   China solar panel makers see boost from Copenhagen   LEAD: Tax relief for families with high-school kids to continue in 2010+   Japan lauds U.N. adoption of U.S.-backed proposal on abolishing nukes+   LEAD: 6 injured in blast during S. Korean bomb test+   Guilty sentence upheld on ex-MSDF officer over Aegis info leakage+   Beyonce leads Grammy nominations with 10   Tax relief for families with high-school kids to continue in 2010+   S. Korean media says 6 injured in blast at shooting range+   Dollar gains to upper 87 yen on BOA move, caution over strong yen+   Nets lose NBA-record 18th straight to start season   Police seize bear paws, dead pangolins in southwestern China+   Delta ready to seek 3rd-party capital for JAL on top of $1 bil. deal+   American, oneworld, TPG to offer JAL $1.8 bil. in financial support+   Nets lose NBA-record 18th straight to start season   New York state lawmakers reject gay marriage bill   Main events scheduled for Friday, Dec. 4+   60 hurt in S.Korea defence institute blast: Yonhap