Context: CREATE TABLE table_16105186_2 (mid_atlantic_south__washington VARCHAR, _dc_ VARCHAR, alaska___juneau__ VARCHAR, california__san_francisco_ VARCHAR)
Question: What was the emission rating in Mid-Atlantic South for the vehicle that was rated 90 g/mi (56 g/km) in Alaska and 110 g/mi (68 g/km) in California?
Answer: SELECT mid_atlantic_south__washington, _dc_ FROM table_16105186_2 WHERE alaska___juneau__ = "90 g/mi (56 g/km)" AND california__san_francisco_ = "110 g/mi (68 g/km)"