Suppose that the user wanted to add a new column name as CUST_NAME data type char size 6. What is the correct SQL statement to use?

• ALTER  PARTSSET CUST_NAME  = CHAR(6);
• ALTER TABLE PARTSSET CUST_NAME  = CHAR(6);
• ALTER TABLE PARTSADD CUST_NAME CHAR(6); Correct
• ALTER PARTSADD CUST_NAME CHAR(6);