The correct answer is: Only I is strong.
Argument I is strong because it provides a valid reason why farmers’ income should not be taxed. Farmers are already facing many challenges, such as natural calamities, low yield, and low procurement prices. Taxing their income would only add to their burden.
Argument II is weak because it does not provide a valid reason why farmers’ income should be taxed. The fact that the majority of the population is dependent on agriculture does not mean that their income should be taxed. There are other ways to augment the resources of the country, such as increasing taxes on other sectors or borrowing money.
Argument III is also weak because it does not provide a valid reason why farmers’ income should be taxed. The fact that some farmers earn much more than the majority of the service earners does not mean that they should be taxed. There are other ways to reduce the disparity between farmers and service earners, such as providing subsidies to farmers or providing more opportunities for service sector jobs.
In conclusion, only Argument I is strong.