The Open Economy Multiplier Is Calculated as Follows

The open economy multiplier is calculated as follows:

A) 1/[1-(marginal propensity to consume + marginal propensity to invest) ]
B) 1/[1-(marginal propensity to consume + marginal propensity to import) ]
C) 1/[1-(marginal propensity to consume + marginal propensity to invest + marginal propensity to import) ]
D) 1/[1-(marginal propensity to consume + marginal propensity to invest - marginal propensity to import) ]