Groups of nations that grants members trade privileges are called

According to Malthus, how do economic growth and population relate to each other?

The simple multiplier 1/MPS:

A.  Understates the actual multiplier because it includes leakages in domestic spending from the purchase of imports or the paying of taxes B.  Understates the actual multiplier because it excludes leakages in domestic spending from the purchase of imports or the paying of taxes C.  Overstates the actual multiplier because it includes leakages in domestic spending from the purchase of imports or the paying of taxes D.  Overstates the actual multiplier because it excludes leakages in domestic spending from the purchase of imports or the paying of taxes