3. Given the declaration int list[20]; the statement list[12] - list[5] + list [7] updates the content of the twelfth component of the array list. a. True b. False parmmeters to a function, struct objects can be passed by reference only. a. True b. Falsc 5. Relational operations (, -, --, -) can be used on struct variabl a. True b. False 6. In C++, namespace is a reserved word. a. True b. False 7. A function can return a value of the type array. a. True b. False 8. In the statement cinx,x can be a variable or an expression. a. True b. False