Which of the following is/are correct with regard to the Gross domestic product (GDP) of a country?

1. It is the sum total of the value of final goods and services created within the geographical boundary of a country in a particular year.

2. Non-monetary exchanges such as barter exchanges are not included in the GDP estimation.

3. A rise in GDP indicates that all the residents of the country are better off today than in the past.

Select the correct answer using the code given below.