The percentage of global tourists who visit Glastock has increased by five percentage points over the past three years. Since tourism contributes an estimated 7% of Glastock's gross domestic product, this increase is likely to have a positive impact on the economy of Glastock.
Which of the following, if true, most strengthens the argument given?
【选项】
Glastock is the leading international tourist destination in its region.
选项是否正确？