Which of the Following Is True Regarding Investment

Which of the following is true regarding investment?

A) In the short run it increases aggregate supply but in the long run it increases aggregate demand.
B) In the short run it influences aggregate demand and in the long run it influences the rate at which the economy grows.
C) In the short run it influences aggregate demand but in the long run it retards economic growth since it requires saving.
D) In the short run it reduces aggregate demand because it requires savings but in the long it promotes economic growth.