Final answer:
The like term to -5x'y is -2x^2yz.
Step-by-step explanation:
In the given options, the like term to -5x'y is option D, -2x^2yz. Like terms have the same variables and exponent combination. Both -5x'y and -2x^2yz have the variables x, y, and z raised to different exponents but they have the same combination of x, y, and z. Therefore, they are like terms.