What are the three main gypsum products and their typical uses?

What are the three main gypsum products and their typical uses?

• A. Plaster for preliminary casts; dental Stone Type II for diagnostic casts; high-strength Stone III/IV for working models and dies; All of the above
• B. Plaster for preliminary casts; dental Stone Type II for diagnostic casts; high-strength Stone III/IV for working models and dies; None of the above
• C. Plaster for preliminary casts; dental Stone Type II for diagnostic casts; elastomeric impression material for dies; All of the above
• D. Elastomeric material for preliminary casts; Plaster for diagnostic casts; high-strength Stone for dies; All of the above

Answer: (D)