What does the word "it" refer to in the last paragraph of the passage

单项选择题To which of the following is the author likely to agree

单项选择题When mentioning the $4 million to $10 million range in Paragraph 3, the author is talking about ______.

单项选择题How do the public feel about the current economic situation

单项选择题By Ellen Spero isn't biting her nails just yet in Paragraph 1, the author means ______.

单项选择题Why can many people see silver linings to the economic slowdown