In the following question, four sentences that form a coherent paragraph are given. Decide which of the sentences are grammatically and meaningfully correct and mark the answer option that contains these sentences.  1. A majority of Russians are ethnic Slavs, but Uzbeks, Ukrainians, Kazakhs, and other minorities make up much of the migrant worker population. 2. Tensions between Slavs and other ethnic groups often leave migrant workers the target of nationalistic fury. 3. According to a report compiled by the International Partnership for Human Rights and the International Federation for Human Rights, 568 Central Asian migrants were beaten and 220 killed among 2004 and 2012. 4. Though hate crimes and discrimination towards migrant workers in Sochi may not be anything new in Russia, but this exploitation poses serious threats not only to the laborers themselves, but also to Olympic and Russian institutionalism.