Answer:
A. Low Unemployment rate and increasing GDP
Step-by-step explanation:
Increasing prices of houses usually is due because the economy is growing. To put it simply, if everything goes well in economy, prices of houses tend to rise. In this case we see that the prices are high. So, looking at the options, we see option A: Low unemployment rate and increasing GDP, two things that makes economy go well; increasing GDP which means economic growth and low unemployment rate, which is also another goal of a good economy.