Logical Puzzles — quick quiz

Four boxes – A, B, C, and D – contain balls of four different colors: Red, Blue, Green, and Yellow (one color per box, not necessarily in that order). The following statements are made: 1. Box A does not contain Red or Blue balls 2. Box B contains Yellow balls 3. Box C contains either Red or Green balls 4. If Box A contains Green balls, then Box D contains Blue balls 5. Box D does not contain Yellow balls Which box contains Red balls?