Study the graph showing data on the number of measles cases reported in the United States each year for the period 2001 to 2015. Which statement presents a correct analysis of the data?
US Measles Cases by Year
8
mber of Cast
700
600
500
400
300
200
100
12001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Year
O A.
Other diseases became more common than measles in the United States after the year 2001.
O B. People have learned proper hygiene techniques to prevent the spread of measles.
O C.
The number of measles cases suddenly increased in the year 2014.
O D.
Vaccination programs have helped reduce the number of measles cases since the year 2014.
