The answer is All of the choices
Spoken language can be considered "diluted" because it often lacks the precision and structure found in written language. This is due to the spontaneous nature of speech, where speakers may not always choose the most precise words or may simplify their language for ease of communication.
Repetitions are common in spoken language as speakers often repeat words or phrases for emphasis, clarification, or to give themselves time to think. This is a natural part of conversational speech and helps in maintaining the flow of communication.
Fillers such as "um," "uh," "like," and "you know" are frequently used in spoken language. They serve various functions, such as giving the speaker time to think, indicating uncertainty, or helping to manage the flow of conversation.
Since all these characteristics are typical of spoken language, the correct answer is "All of the choices."