What is a primary difference between direct and indirect pulp therapy?

What is a primary difference between direct and indirect pulp therapy?

• A. Direct pulp therapy treats an exposed pulp; indirect pulp therapy treats near-exposed pulp without exposure to preserve vitality.
• B. Direct therapy cures tooth decay; indirect therapy cures gum disease.
• C. Direct therapy uses lasers; indirect uses magnets.
• D. Direct therapy is for primary teeth; indirect is for permanent teeth.

Answer: (A)