Answer:
(c)there is no heat flow between the metal and the oil
Explanation:
oil is not a good conductor of heat
B. Controlling the flow of Blood to the skin seems to make the most sense
Choice B is correct.
Solar energy charges the battery or cell; it is then powered through the wires and light comes and heat.
But if the lamp they are talking about doesn't have wire the choose C.
But I am certain it is B
Environment. None of the others make any sense. :)