Answer
(a) Odd
(b) Neither
(c) Even
(d) Neither
Work Step by Step
(a) The function is symmetric with respect to the origin. Then, the function is odd.
(b) The function is neither symmetric with respect to the y-axis nor the origin. Then, the function is neither even nor odd.
(c) The function is symmetric with respect to the y-axis. Then, then function is even
(d) The function is neither symmetric with respect to the y-axis nor the origin. Then, the function is neither even nor odd.