Answer:
A. Private saving equals $2 trillion and public saving equals $1 trillion
Explanation:
The computation of private saving and public saving is shown below:
For private saving, it equals to
= Y - C - T + TR
= $12 trillion - $9 trillion - $3 trillion + $2 trillion
= $2 trillion
And, for the public saving, it equals to
= T - TR
= $3 trillion - $2 trillion
= $1 trillion
Hence, all other options are incorrect except A option