During World War II, American and British forces dropped millions of tons of bombs on German cities. Nearly ten percent of the bombs never exploded. The war ended in 1945, but more than two thousand tons of unexploded bombs are still found in Germany each year. Before any construction project is undertaken, the site must be checked for unexploded bombs. Buried bombs are often discovered. For this reason, Germany has a special force of firefighters and police officers, called the KMBD, to defuse and remove these bombs. Even though the war has been over for seven decades, the KMBD is one of the busiest bomb squads on the planet. What is the main, or central, idea of the passage?
Almost ten percent of the bombs dropped on Germany during World War II never exploded.
Because there are so many unexploded bombs in Germany, the country has a special force trained to defuse them.
Because there is so much construction in Germany, the country has a special force trained to defuse bombs.
The correct answer is: Because there are so many unexploded bombs in Germany, the country has a special force trained to defuse them.
Explanation: The passage discusses how millions of bombs were dropped on German cities during World War II, with a significant portion remaining unexploded. It emphasizes the need for a specialized team, the KMBD, to handle these unexploded bombs, highlighting the ongoing issue well after the war has ended. The other options focus on specific details but do not capture the central idea regarding the necessity of the special force due to the presence of unexploded bombs.