C++

can someone please help mw with question numb 4,5 and 6 asap. Thank u

C. A special symbol other than underscore D. B and C 4. Which of the following shoms the correct hierarchy of arithmetic operations (higher precedence comes first)? 5. What is the right way to initialize an array? A. int num[6)-(2, 4, 12, 5, 45, 5) B. int num(6) - (2, 4, 12, 5, 45, 5) C. int num{ } = {2, 4, 12, 5, 45, 5); D. int num(6) ?2, 4, 12, 5, 45, s); 6. Which of the follawing is allowed in an arithmetic instruction (an expression of arithmetic operstion contained n a staemen B. C. o D, All of the above 7. What is the output of the following code int n