Ineed a really good simile for old someone

Read this statement: "but old fears have a way of clinging like cobwebs." how is this statement related to figurative language? this statement demonstrates personification. this statement demonstrates a hyperbole. this statement demonstrates a onomatoepia. this demonstrates a simile.

The goal of __ painters was not to make a photographic representation of a subject, but to capture the impression of a particular moment in time a) still artist b) realist c) impressionist

What is the meaning of the word "caches" as it is used in paragraph 6