Which of the following is a valid SQL statement? a. SELECT TRUNC(ROUND(125.38, 1), 0) FROM dual; b. SELECT ROUND(TRUNC(125.38, 0) FROM dual; c. SELECT LTRIM(LPAD(state, 5, ' '), 4, -3, "*") FROM dual;...

Which of the following is a valid SQL statement?
a. SELECT TRUNC(ROUND(125.38, 1), 0) FROM dual;
b. SELECT ROUND(TRUNC(125.38, 0)
FROM dual;
c. SELECT LTRIM(LPAD(state, 5, ' '), 4, -3, "*")
FROM dual;
d. SELECT SUBSTR(ROUND(14.87, 2, 1), -4, 1)
FROM dual;