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.
Your correct on everything
Cause and effect is a common way to organize information in a text. Paragraphs structured as cause and effect explain reasons why something happened or the effects of something. The cause and effect text structure is generally used in expository and persuasive writing modes.
Answer:
A
Explanation:
A colon is used to demonstrate a list. In this case, you are listing the places where funding for libraries is not prioritized. Thus, it would be appropriate to insert a colon before it.