This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Porosity in porcelain at condensation stage depends on: 
Select and explain. 
A. Shape and size of particle, B. Uniform distribution of particle size, C. Number of particles, D. None of the above
A: Shape and size of particle
Answer: A: Shape and size of particle 
Explanation: None