What is the definition of development?
a. the process by which arable land turns dry and unusable
b. the preservation of different species of plants and animals
c. the study of the effect of gas emissions on climate change
d. the use of data to monitor and study economic and social change

The definition of development is: d. the use of data to monitor and study economic and social change

In this context,the use of data is intended to ensure that the economic and social change benefited the society in a positive manner. The end goal of every development plan is to increase the quality of life/well being of the people who live in it. This could happen either financially, socially, or spiritually,

answer; (you have the right of way);

economic