Answer: Option 'd' and 'c' are correct.
Step-by-step explanation:
As we know that
Mixture is the composition of two or more different substances which are combined physically.
In mixture, the identities of substances are retained and we can identify the parts that make up the mixture.
And trail mix is composed of nuts, seeds, raisins etc. and it is heterogeneous mixture.
So, we can easily identify and separate the part by their properties too.
Hence, Option 'd' and 'c' are correct.