Which of the following statements is correct?

a) A company that discovers that one of its overseas subsidiaries is using child labour should close down that subsidiary immediately so that it is not in breach of Principle 5.
b) A large chemical production plant has always pumped large amounts of waste products into the local river. To date, this waste product has been relatively neutral with regard to the environment consisting mainly of desalinated water. New product lines and processes have recently significantly changed the nature of the waste being pumped into the river. Company chemists have signalled to management that this new waste is possibly highly toxic. Local environmental regulators haven't tested the waste or asked the company to stop sending it to the river. Because regulators haven't told the company to stop sending its waste to the river and because the company chemists aren't sure of the waste's toxicity, the company is not in breach of Principle 7.
c) A private construction company has turned down a government contract to construct a prison complex to house people imprisoned for their political beliefs. If it had taken the contract, the construction company would have been in breach of Principle 2.
d) Your business subcontracts out production to a seperate company in another country. That other company conducts business in a way that denies some fundamental human rights to its employees, for example, by using a proportion of forced or slave labour in its production processes. While this is an unpleasant fact, your business is not in breach of Principle 2 because it is not itself directly forcing those people to work.