Step 1: What is turpentine.
Turpentine is a liquid made by heating and distilling the sticky resin that comes from certain trees.
Step 2: Which trees give resin.
Many cone bearing trees make resin to protect themselves from insects and disease.
Step 3: The main source.
Among the options, pine trees are the main commercial source of this resin.
Step 4: The process.
When pine resin is distilled, it splits into turpentine, the light oil, and rosin, the solid that is left behind.
Step 5: Remove others.
Deodar, crude petroleum, and oak are not the usual source of turpentine.
Step 6: Conclusion.
So turpentine is obtained from pine.
Answer: Pine