user: Question: What is the US A.C. in 1974?
Columns: ['Year', 'Song', 'Canada Singles', 'US Hot 100', 'US A.C.']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1974.0, '"People Gotta Move"', '21', '22', '17']
SQL:

assistant: SELECT "US A.C." FROM "Table" WHERE "Year" = 1974.0;