Which sentence contains an infinitive?

Help pls

Which of the following pieces of evidence from gandhi's freedom's battle is most persuasive in support of non- cooperation? a) "i consider that people are better disciplined now than they were before." b) "the danger that attended the civil disobedience does not apply to non-cooperati c) "i do not consider non-cooperation to be unconstitutional." d) "i cannot say a large number has responded to my appeal."

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"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.