ATPL: In the JAR OPS, a runway is considered wet when:1. it is covered with a quantity of water or loose or slushy snow less than or equal to the equivalent of 3 mm of water.2. the amount of surface moisture is sufficient to modify its colour but does not give it a shiny appearance.3. the amount of surface moisture is sufficient to make it reflective, but does not create large stagnant sheets of water.4. it bears stagnant sheets of water.The combination regrouping all the correct statements is: