For which two actions can you use the

For which two actions can you use the TO_DATE function? （）

• Aconvert any date literal to a date
• Bconvert any numeric literal to a date
• Cconvert any date to a character literal
• Dformat 'January 10 1999' for input
• Eformat '10-JAN-99' to 'January 10 1999'