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
Purpose of tilting the cast, while surveying is to: 
Select and explain. 
A. Achieve maximum guiding planes, B. Create undercuts, C. Obtain a favorable path of insertion, D. Obtain retention
C: Obtain a favorable path of insertion
Answer: C: Obtain a favorable path of insertion 
Explanation: None