You need to calculate the number of days from 1st January 2019 until today. Dates are stored in the default

A. SELECT ROUND(SYSDATE – TO_DATE(’01/JANUARY/2019′)) FROM DUAL;

B. SELECT ROUND(SYSDATE – ’01-JAN-2019′) FROM DUAL;

C. SELECT SYSDATE – TO_DATE(’01-JANUARY-2019′) FROM DUAL;

D. SELECT TO_DATE(SYSDATE, ‘DD/MONTH/YYYY’) – ’01/JANUARY/2019′ FROM DUAL;

E. SELECT TO_CHAR(SYSDATE,’DD-MON-YYYY’) – ’01-JAN-2019′ FROM DUAL;