The correct option is B 50%
In 2010, WWF calculated that the global ecological footprint stood at 18.1 billion global hectares, which would amount to 2.6 global hectares per individual. Whereas, the Earth’s total biocapacity in 2010 was just 12 billion global hectares, which would come down to 1.7 global hectares per individual. It indicated that people exceeded the biocapacity of planet Earth by around 50%.