Answer: [A]: "axon" .
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"The <u> axon </u><u /> is a thin fiber that carries signals away from the cell body."
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The right option is; Thermoreceptors
Thermoreceptors helps her adjust to the change in the temperature of her surroundings.
Thermoreceptors are specialized nerve cells that are sensitive to detect changes in heat energy (temperature). Thermoreceptors are found in every part of the skin. They detect heat and cold, therefore, they allow sensory reception within the body. The sensitivity of the skin to temperature changes is based on the number of thermoreceptors and where they are located.
The correct answer is (c.) rolls in mud to cool off and deter flies. Species adapt over time through structural and behavioral adaptation. One of its examples would be rolling in the mud to cool off and deter flies, would best describes a behavioral adaptation of an elephant.
There is not that much information, so it is impossible to answer this question. I apologise.