Concept:Heat treatment before sowing is a method used to break seed dormancy in oil palm.
Explanation:Oil palm seeds remain dormant because of their hard seed coat and inactive embryo.
This dormancy stops germination even when water, air, and temperature are suitable.
Applying heat softens the hard seed coat and awakens the embryo.
This allows the embryo to resume growth and germinate successfully.
Heat treatment does not provide nutrients to the embryo.
It also does not harden the mesocarp or improve disease resistance.
Hence, the main purpose is to break embryo dormancy.
Answer:C. break embryo dormancy