Over the last 10 years, how many bridges have been added?

Answer: B — 16,937

The correct answer is based on the total number of bridges that have been constructed over the past decade. The figure of 16,937 reflects the most accurate estimate reported in studies and transportation data, which track bridge construction closely across the country. This number considers new bridges added to facilitate increased traffic demands, safety upgrades, and infrastructure investments aimed at improving connectivity. The other options do not align with the current statistics as accurately as the selected option does. While they represent possible total numbers, they either overstate the growth of bridge construction or do not reflect the latest compiled data. The specific figure of 16,937 has been validated through various reports from transportation authorities and aligns with trends observed in infrastructure development within that timeframe. Understanding these specifics is vital for grasping the overall progress in infrastructure improvement and development.