Which of the Following Is True Concerning Polymerization Shrinkage of Composite

Which of the following is true concerning polymerization shrinkage of composite resin restorations?

A) Recent research indicates that the composite resin material does not shrink toward the light.
B) When composite is placed and cured in a preparation that has two opposing walls, the composite will expand and push against the walls.
C) The greater the resin content of the composite, the less will be the shrinkage.
D) Microfills and flowables shrink less than hybrids and packables.