The given diagram shows two empty flasks (X and Y) connected by a glass tube. There is a drop of ink in the tube.
Which of the following will cause the drop of ink to move towards flask Y?
a. Put flask X in a basin containing ice.
b. Put flask Y in a basin containing ice.
c. Put flask X in a basin containing hot water.
d. Put flask Y in a basin containing hot water.
A a and b
B a and d
C b and c
D c and d
diagram is not there in the question