In the following question, a word is given followed by three pairs of statements. From the options given below, choose the one that provides the correct combination of sentences that can be joined by the given word. Because
I. The country requires a minimum wage. Workers paid below the poverty line have an added cost on society.
II. The book written by Cisneros has sold more than 7 million copies. Earlier this year it became the first title by a U.S.-born Latino writer to become part of the Everyman's Library.
III. She always speaks to her grandfather in a loud voice. He is hard of hearing.

BECAUSE is used to show the reason for something and can be used to join the sentences in I and III. In I, the first sentence tells us that the country needs to have a minimum wage. The second sentence gives us a reason for it: When the wages of workers are below the poverty line, it creates additional costs for society, thereby burdening it. In III, the first sentence describes how she always talks to her grandfather in a loud voice. The second sentence provides the reason for it: the grandfather has a hearing problem. Thus, C is the right answer. In II, the first sentence describes the success of the book written by Cisneros. It has sold more than seven million copies. The second sentence adds to this by mentioning another achievement: it was the first ever book written by a U.S.-born Latino writer to become part of the Everyman's Library.