Which of the following is most likely a heterogeneous mixture?

A. a jar of mixed nuts (͡° ͜ʖ ͡°)

B. Sugar water

C. Stainless Steel

D. Water in a swimming pool

I believe it is A) A jar of mixed nuts

Heterogeneous mixture means a combination of 2 or more substances.

It can't be sugar water because the sugar dissolves in water and all you see is water. In the mixed nuts, you can see the many different nuts in the mixture

The whole nut. And nothing but the nut.