Question

For an economist, the idea of making assumptions is regarded generally as 

a. bad idea, since doing so leads to the omission of important ideas and variables from economic
models.
b. bad idea, since doing so invariably leads to data-collection problems.
c. good idea, since doing so helps to simplify the complex world and make it easier to understand.
d. good idea, since economic analysis without assumptions, leads to complicated results that the
general public finds hard to understand