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A data engineer is tasked with creating a function named print_details that outputs the name of the current catalog and database, separated by a space. Which of the following statements correctly creates this function?
print_details
A
CREATE FUNCTION print_details() RETURNS STRING RETURN concat(current_catalog(),‘ ‘,current_database());
B
CREATE FUNCTION print_details(STRING) RETURNS concat(current_catalog(),‘ ‘,current_database());
C
CREATE FUNCTION print_details RETURNS STRING RETURN concat(current_catalog(),‘ ‘,current_database());
D
CREATE FUNCTION print_details(STRING) RETURN concat(current_catalog(),‘ ‘,current_database());
E
CREATE FUNCTION print_details() RETURNS concat(current_catalog(),‘ ‘,current_database());
