Choose the right answer from the given options
Important for :
Which one of the following is not a method of estimating National Income?
» Explain it
A number of measures of national income,  are used in economics to estimate total economic activity in a country or state. There are three main methods for Measuring National Income.
1. Product Method 
2. Income Method
3. Expenditure Method
Hence, the option C is correct.
» Explain it
National Income refers to a total value of a country’s final output of all new goods and services produced in one year. In other words National Income is Net domestic Product at factor cost.  

Hence, the option B is correct.

Of the following land uses, which is restricted to Special Economic Zones?
» Explain it
The category Special economic zone includes free trade zones (FTZ), export processing Zones (EPZ), free Zones  (FZ), industrial parks or industrial estates (IE), free ports, free economic zones, and urban enterprise zones. The goal of a SEZ structure is to increase foreign direct investment by foreign investors.

Hence, the option A is correct.