According to the Starling's Equation, Which Forces Influence the Movement

Multiple Choice

According to the Starling's equation, which forces influence the movement of fluid from the bloodstream to the interstitium?
I.microvascular hydrostatic pressure
II.interstitial osmotic pressure
III.microvascular osmotic pressure
IV.interstitial hydrostatic pressure

A) I only
B) I and II
C) III and IV
D) I and IV