The graph illustrates the yearly percentage changes in the prices of new houses and existing houses in the United Kingdom from 2010 to 2012. What conclusion can be drawn from the graph?
- AFrom October 2010 new houses on average were more expensive than existing houses.
- BThe average price of new houses peaked in October 2011.
- CThe average price of existing houses was lower in May 2011 than in May 2010.
- DThe average price of existing houses fell to their lowest level in May 2011.