GDP is not a perfect measure of well-being; for example: a. GDP excludes the value of volunteer work. b. GDP does not address the distribution of income. c. GDP does not address environmental quality. d. All of the above are correct.

All of the above are correct

Explanation:

Many modern economies tend to forget that GDP is simply a standard metric for the measurement of growth in an economy and has nothing to do with human or the nation's well-being. An example why this is so is that GDP does not involve the value that volunteer work may bring to the economy. It also has nothing to do with how income is distributed, neither does it address the quality of the environment.