Thermal conduction (or thermal diffusion) is a mode of thermal transfer caused by a temperature difference between two regions of the same medium, or between two media in contact, and being realized without global displacement of material (on a macroscopic scale ) as opposed to convection which is another heat transfer. It can be interpreted as the transmission from near to thermal agitation: an atom (or a molecule) gives up some of its kinetic energy to the neighboring atom.
Thermal conduction is a process of internal energy transport linked to molecular agitation and due to heterogeneity of the medium on a macroscopic scale.
The id is the main component of personality that is available from birth. This part of the personality is totally oblivious and incorporates intuitive and crude practices.
As indicated by Freud, the id is the wellspring of all clairvoyant vitality, making it the essential segment of personality.
The id is driven by the joy rule, which makes progress toward quick satisfaction, all things considered, needs, and needs. If these necessities are not fulfilled promptly, the outcome is a state nervousness or pressure. For instance, an expansion in yearning or thirst should create a quick endeavor to eat or drink.
Hence, the right answer is option d "Id is the source of basic biological needs and desires".