P: TAccording to the U.S. Census Bureau, , Rhode Island had an estimated population of 1,056,298, which is an increase of 1,125, or 0.10%, from the prior year and an increase of 3,731, or 0.35%, since the year 2010. This includes a natural increase since the last census of 15,220 people (that is 66,973 births minus 51,753 deaths) and an increase due to net migration of 14,001 people into the state. Immigration to the United States from outside the United States resulted in a net increase of 18,965 people, and migration within the country produced a net decrease of 4,964 people.
Answer this: How many more births and deaths combined were there than the natural increase of 15220 people?

A: 103506

P: The diplomatic history of the United States oscillated among three positions: isolation from diplomatic entanglements of other nations ; alliances with European and other military partners; and unilateralism, or operating on its own sovereign policy decisions. The US always was large in terms of area, but its population was small, only 4 million in 1790. Population growth was rapid, reaching 7.2 million in 1810, 32 million in 1860, 76 million in 1900, 132 million in 1940, and 316 million in 2013. Economic growth in terms of overall GDP was even faster. However, the nation's military strength was quite limited in peacetime before 1940.
Answer this: How many millions of people did the population increase by from 1790 to 1810?

A: 2.2

P: Aleksandr Vasilievich Nazarenko is a Russian historian who works in the Moscow State University. He heads the project "Russia and Central Europe in the Middle Ages" in the World History Institute of the Russian Academy of Sciences. Having studied at the university to gain doctorates in philology and history, Nazarenko revived the tenet of 19th-century Russian historiography that it is impossible to research early East Slavic history without detailed knowledge of ancient languages. Considered a disciple of Vladimir Pashuto, Nazarenko advocates tighter integration of historiography with the auxiliary disciplines of genealogy, numismatics, and sigillography. This approach allowed him to identify and publish a number of new sources on the history of Kievan Rus. Nazarenko's major findings were summarized in a monograph International Relations of Ancient Rus . Moskva: Russkii fond sodeistviiia obrazovaniiu i nauke, 2009 ISBN5-91244-009-5 Upon its publication in 2009, the book won Nazarenko the Macarius Award of the Russian Orthodox Church.
Answer this: How many disciplines does Aleksandr advocate for?

A:
3