Assertion (a): Human development mentions how much socio-economic development has happened in a country. Reason (r): Comparison of national income of two countries explains human development index. Which of the following options is correct?
1) Both assertion (a) and reason (r) are true and reason (r) is the correct explanation of assertion (a).
2) Both assertion (a) and reason (r) are true but reason (r) is not the correct explanation of assertion (a).
3) Assertion (a) is true but reason (r) is false.
4) Assertion (a) is false but reason (r) is true.
