Answer:
An example of a mixture would be salt water
C is correct because they would repel each other A is wrong be they wouldn't repel And B is wrong because they shouldn't be repelling each other
The image formed by a plane mirror is virtual, upright and the same size with the actual object. The upright image of an object in a plane mirror is can be found on the other side of the mirror which is why it is also virtual.
its D
i hope this helps to future test takers. i took the test and had to retake it because their wasn't an answer