What is the preferred way to portray thoughts in fiction? (poll 6923904)

What is the preferred way to portray thoughts in fiction?

Using italics alone to denote internal monologue

Using quotes and speech tags, such as "she thought"

Using speech tags, such as "she thought," but no quotes

Interspersing direct thoughts throughout paragraphs without distinction from the rest of the action/narration

Other (please describe below in the comments area)

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See this poll on: https://poll.fm/6923904/embed