What is the parameter mode for p_name in the query_demo proc…

Whаt is the pаrаmeter mоde fоr p_name in the query_demо procedure in the following PL/SQL block? DECLARE  p_name  persons.name%TYPE;    p_sal   persons.salary%TYPE;BEGIN  query_demo(178, p_name, p_sal);  DBMS_OUTPUT.PUT_LINE('Name: ' || p_name);  DBMS_OUTPUT.PUT_LINE('Salary: ' || p_sal);END;