The correct answer is C. past tense.
Past tense is a grammatical tense used to describe an action or event that is done in the past. "Mixed" has a regular form "mix" and by adding "-ed" to it, it becomes a past tense.
of each word? i'm confused do a little better explanation
Answer:
Why did this happen?
Answer:
D) I tried to drive before the light turned red, but stopped when it did
E) I tried to drive when the light was still yellow, but stopped when it turned red.
Explanation:
Given the fact that the question is incomplete and example 2 (which is said to be a garbled sentence, confusingly written) was not given, we can assume that it was talking about a person trying to beat the red light.
With this in mind, the two revisions below that would clarify its meaning are options D and E because they make the most sense.