-the water is at rest
-the water is at its densest (4°C)
-the water is most viscous
Other related questions:
Q: Which of the following has the lowest kinetic energy?
A: The particle with the lowest kinetic energy is the one that is moving the slowest.
Q: Which phase of water has more kinetic energy?
A: The liquid phase has more kinetic energy than the solid phase.
Q: What temperature has lowest kinetic energy?
A: The lowest possible kinetic energy is zero.