What is the purpose the wait block?

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No because to small needs to be bigger

The answer is  c. 1, 1, 1.b89 is an absolute reference. there are no dollar signs indicating relativity.p$90 is a mixed reference. the p column is absolute, but the row is relative as indicated by the dollar sign in front of the row number. it's a mix of absolute and relative.$d$34 is a relative reference. both the column and the rows have dollar signs in front of them, so the entire thing is relative.there's only one of each.