False. Technology hasn't reached the point where it is always 100% yet.
<span>The question says,'which of the following statement contains an example of an explanation. The correct option is A. All the other given options are just pure statements, but option A, which is talking about thermostat, take time to explain what a thermostat is. It explains that the thermostat is an instrument which control the temperature in the house.</span><span />
Overall, Thoreau wanted to prove that not everyone will easily flow with the rules of society. As a result, he calls the people who go different paths than the ones of society "different drummers."
In conclusion, your final answer should be A.