How many young people below 25 were unemployed in Europe in 2015?

The correct answer reflects the reality of youth unemployment in Europe during 2015, a year marked by significant economic challenges and recovery efforts following the financial crisis of 2008. At that time, many countries across Europe faced high unemployment rates, especially among young individuals under the age of 25.

Young people typically experience higher unemployment rates compared to the general population due to a variety of reasons, including limited work experience, skills mismatches, and barriers to entry into the job market. Data from the European Union's statistics agency, Eurostat, and other labor market analyses indicate that youth unemployment rates were particularly alarming in southern European countries, pushing the total unemployed youth figure over 5 million across the continent.

The other options reflect either underestimations or misinterpretations of the economic conditions prevalent in that period. Given the widespread economic recovery yet persisting issues with youth employment, the figure of more than 5 million accurately encapsulates the scope of the unemployment crisis among young people during that time.