Let X and Y be two arbitrary, $$3 \times 3$$, non-zero, skew-symmetric matrices and Z be an arbitrary $$3 \times 3$$, non-zero, symmetric matrix. Then which of the following matrices is (are) skew symmetric?

A

$$Y^3 Z^4 - Z^4 Y^3$$

B

$$X^{44} + Y^{44}$$

C

$$X^4 Z^3 - Z^3 X^4$$

D

$$X^{23} + Y^{23}$$