What Is the Main Argument Which Explains Why the Data

What is the main argument which explains why the data do not show a positive relation between the deficit producing tax cuts in the early eighties savings rates?

A) People will increase savings to "finance" debt repayment by future generations.
B) People will increase consumption to "finance" debt repayment by future generations.
C) Savings is determined by uncertain events,the timing of future illnesses and death.
D) Savings is determined by certain events,the timing of future illnesses.