Which of the following scenarios is an example of cohesion?

A Water molecules stick to the surface of a mirror.
B Water sticks to the walls of blood vessels.
C Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.
D Water molecules stick to one another and form a bead

Correct Answer: Option D

Explanation:
Cohesion is an ability of water molecule to stick to one another due to the presence of hydrogen bonding