Which of the Processes A-D Will Lead to a Positive

Multiple Choice

Which of the processes A-D will lead to a positive change in the entropy of the system?

A) Sodium chloride crystals form as salt water evaporates.
B) Helium gas escapes from the hole in a balloon.
C) Stalactites form in a cave.
D) Water freezes in a freezer.
E) All of these lead to a positive change in entropy of the system, because they are all spontaneous.