Which sentence is a personification and which is not 1. The wind danced through the streets.

2. The dog barked loudly at the squirrel, which quickly
ran up the tree.

3. The stairs groaned in agony as Tom carried the heavy
boxes to the attic.

4. The coins danced happily in Claire's pocket.

5. The ship sailed smoothly across the clear, blue lake.

I'm not 100% sure but I think that 2 is the only one that doesn't use personification

Explanation:

Personification is the attribution of a personal nature or human characteristics to something nonhuman, or the representation of an abstract quality in human form.

Advntage:

provides CPU scheduling, memory management, file management, and other operating system functions through system calls. The other one is that it is a single large process running entirely in a single address space.

Disadvantage: if anyone service fails it leads to an entire system failure