Which of the Following Statements Is True

Which of the following statements is true?

A) In an open economy, the smaller a nation's marginal propensity to import, the smaller the multiplier.
B) In an open economy, the larger a nation's marginal propensity to consume, the smaller the multiplier.
C) In an open economy, the larger a nation's marginal propensity to export, the smaller the multiplier.
D) In an open economy, the larger a nation's marginal propensity to import, the smaller the multiplier.