The answer that h are looking for is c
Epigeal germination is a botanical term indicating that the germination of a plant takes place above the ground. An example of a plant with epigeal germination is the common bean (Phaseolus vulgaris). The opposite of epigeal is hypogeal (underground germination).
Abiotic means "not life," basically. So, abiotic factors are non living factors. Soil, air, and temperature, are all non living things. However, plants are biotic factors, meaning that they are living. So, the answer is plants, they are not an abiotic factor!
A sensory nerve is really a collection of long dendrites carrying messages to the central nervous system from the periphery.