The correct answer is letter B
Olfactory sense is one of the five senses through which odors are perceived. The nose, equipped with olfactory nerves, is the main organ of smell. The olfactory nerves are also important to distinguish the taste of substances that are inside the mouth.
Transduction is a transformation of physical or chemical stimuli into electrical potential by sensory receptors. Whether neuronal or secondary sensory cells, all highly specific.