Commentary 1
The answer is correct. The answer is correct for the following reasons.
The answer completes the task given by giving a stand or opinion on the subject in question and giving valid and reasonable arguments. This is by first agreeing that copper theft has exploded, then giving reasons through valid and reasonable argument.
The answer utilizes facts and figures or support the reasoning and argument it proposes. Facts and figures prove the validity of the argument by proving that indeed copper theft has exploded and the reasons given are true.
The answer specifically gives two causes of the explosion of copper theft. Both these reasons are supported by valid argument backed by facts.
Commentary 2
The answer is wrong. The question asks for the effects of copper thefts on energy infrastructure and security. The answer adequately states and explains the risks as the cause of the effects caused by copper thefts. Though the arguments are reasonable, they have not been validated by facts and/or figures. Without these facts and figures, the answer is purely speculation since there is nothing to substantiate the claims made by the argument posed.
Commentary 3
The answer is correct. It adequately covers all possible avenues through which the individual believes is the best way to prevent thefts. The ideas given are reasonable and applicable in real life and this has been proven by providing a real life example where the techniques of copper theft reduction have been used. This information is backed by facts and figures and their source is provided for in the answer given. The arguments given are valid and reasonable due to this fact.
References
SafeElectricity.org. (2011). Copper theft: gain a buck, lose a life. Retrieved July 14, 2013, from SafeElectricity.org: http://www.safeelectricity.org/information-center/library-of-articles/57-meter-tampering/290-copper-theft-gain-a-buck-lose-a-life
Trade Service. (2013). Copper pricing 2013. Retrieved July 14, 2013, from Trdaeservice.com: http://www.tradeservice.com/copper_pricing/
Williams, T. (2001, February 7). Copper prices and incidences of copper theft rise. Retrieved from The New York Times: http://www.nytimes.com/2011/02/08/us/08theft.html?_r=0
