You are currently located in Singapore and have connected to a remote database in Chicago. You issue the following command:SQL> SELECT ROUND (SYSDATE-promo_begin_date, 0) FROM promotions WHERE (SYSDATE-promo_begin_date)/365 >2;PROMOTIONS is the public synonym for the public database link for the PROMOTIONS table. What is the outcome?（） 

• A、an error because the ROUND function specified is invalid 
• B、an error because the WHERE condition specified is invalid 
• C、number of days since the promo started based on the current Chicago date and time 
• D、number of days since the promo started based on the current Singapore date and time