user: Question: Which date has serial of 11C?
Columns: ['Date', 'Time ( GMT )', 'Serial', 'Apogee', 'Outcome']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1958-12-24', '04:45', '3C', 'kilometres (mi)', 'Success']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Serial" = '11C';