Which is gypsum product_______________?
Correct answer: D. All of the above
- A. Stone
- B. Plaster
- C. Investment
- D. All of the above
Explanation
Plaster and stone are gypsum products, while investment is a gypsum product when it is gypsum-bonded and contains gypsum as its binder. Therefore, all three can be included in this classification.
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