Geology

Im having a difficult time with a geology final question. "The number of ice advances during the Pleistocene was most likely"
one
four 20-25
over 100

I understand one cap, 4 major ice events with 11 ice advances but am very unclear on an answer or how to figure out what the instructor is looking for. The words 'most likely' I know have something to do with the correct answer.

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  1. I think he is looking for the 4 major glacials.

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    bobpursley
  2. that is what I was thinking but a glacier is different than an ice advance of which I came up with 11 plus other smaller advances so I'm really confused.Thank you Bob.

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