Four test-tubes are arranged as illustrated and kept in darkness. In which test-tube will the seeds germinate first?
- Aseeds on moist cotton wool at $0\,^{\circ}\text{C}$
- Bseeds on moist cotton wool at $25\,^{\circ}\text{C}$
- Cseeds on dry cotton wool at $25\,^{\circ}\text{C}$
- Dseeds on cotton wool in water with oxygen removed, covered with oil, at $25\,^{\circ}\text{C}$