Which definition best applies to the meaning of hitch as it is used in paragraph 2 of the passage?

1. to attach or connect with a hook
2. to get married
Hitch Which noun
1. a temporary problem
2. a device used to connect one
thing to another
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Which of the following best describes a writing style authors use to convey a satirical tone?

1. in which sentence is the underlined portion a predicate nominative? for astronauts, going into space to repair orbiting equipment becomes a challenge. for astronauts, going into space to repair orbiting equipment becomes tricky. for astronauts, going into space to repair orbiting equipment becomes challenging. for astronauts, going into space to repair orbiting equipment becomes frequent.

How would you check a statement to determine that it is a simile?