Answer:
c. more than $78.02 billion in exports
Explanation:
The nation of Brazil had imports of $78.02 billion in 2018 and had a positive trade balance. This means that Brazil has exports of greater than $78.02 billion. That if a country's exports go beyond its imports, it is claimed that the country has a positive balance of trade. It indicates that Brazil has exports of greater than $78.02 billion.
Hence, the correct option is c.