This is a question about the passage below (Where Have All the Lisas Gone? by PEGGY ORENSTEIN).

Q.What is implied in the following paragraphs?

A.Leo and Natalie are rare names.
B. There is a social trend to have names that are the same.
C. Parents are unwittingly drawn into choosing unusual names
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Perennials like Michael or Sarah are not, to my mind, the nub of the issue. They don't explain why so many people seeking more adventurous names seem to hit upon the same ones. Why did I recently receive birth announcements from three couples who had never met, who lived as distant from one another as Maine, Minnesota and California, yet who had all named their sons Leo? How to account for the sudden spate of Natalies?

I am not so smug as to think myself immune to first-name zeitgeist. A few years ago, I developed a sudden affection for Julia, which now hovers at 31, and then for Hannah, which is No. 3. Although I have never personally met a Madison (2), I have watched friends seduced by the seeming novelty of Alyssa (12), Olivia (10) and Dylan (24 among boys), only to discover that their children are destined to spend life with the initials of their last names appended to their first.
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Thanks in advance!