The chart below shows the major types of minerals mined in the United States and Australia.
Country Major types of minerals
United States coal, iron, silver, copper, oil
Australia iron, oil, uranium, silver, lead, zinc, bauxite, coal, copper, gold
Based on the chart, what percent of the major types of minerals mined in Australia are also mined in the United States?
A 30%
B 50%
C 70%
D 90%