Answer: (iii) Tertiary
The economy of Brazil is mainly dependent on the tertiary activities there.
The pie charts in the textbook (2016) show that the tertiary (service) sector contributes the largest share, about two-thirds, of Brazil’s GDP, and that most of Brazil’s working population is also engaged in tertiary activities. Only a small share of GDP comes from primary activities such as agriculture and mining, even though Brazil is a big producer of coffee, sugarcane and iron ore. Brazil has a strong and rapidly growing service sector, so it cannot be called an agrarian economy like India.