Warm water is poured slowly into a beaker of ice cubes
as shown in the given figure.
What can be observed when the warm water is poured
into the beaker?
I. The ice starts melting.
II. The glass expands.
III. The temperature of the ice decreases.
IV. The temperature of the warm water decreases.
A I and IV only
B II and IV only
C I, III and IV only
D I, II, III and IV
see the question's answer is option (A) according to its solution but its answer key says that all statements are correct