12. Suppose x is 5 and y is 7. Choose the value of the following expression: (x != 7) && (x <= y) a. false b. true c. 0 d. null Suppose that x is an int variable. Which of the following expressions always evaluates to true? a. (x > 0) || ( x <= 0) c. (x > 0) && ( x <= 0) b. (x >= 0) 11 (x == 0) d. (x > 0) && (x == 0) 14. Which of the following expressions correctly determines that x is greater than 10 and less than 20? a. 10 < x < 20 c. 10 < x && x < 20 b. (10 < x < 20) d. 10 < x || X < 20 15. Which of the following will cause a logical error if you are trying to compare x to 5? a. if (x == 5) c. if (x <= 5) b. if (x = 5) d. if (x >= 5