Calculate Number Of Days Between 2 Dates And Then Assign Number Based On Answer

How to create a spreadsheet with what I think will be a very simple formula?

If date in B2 - date in A2 is 1 or less days, put a 1 in cell C2.
If date in B2 - date in A2 is 7 or less days but more than 1, put a 2 in cell C2.
If date in B2 - date in A2 is 30 or less days but more than 7, put a 3 in cell C2.
If date in B2 - date in A2 is 90 or less days but more than 30, put a 4 in cell C2.
If date in B2 - date in A2 is 91 days or more, put a 5 in cell C2.

OR

Another, maybe simpler, way of saying it is:

If date in B2 - date in A2 is 1 or less days, put a 1 in cell C2.
If date in B2 - date in A2 is 2-7 days, put a 2 in cell C2.
If date in B2 - date in A2 is 8-30 days, put a 3 in cell C2.
If date in B2 - date in A2 is 31-90 days, put a 4 in cell C2.
If date in B2 - date in A2 is 91 days or more, put a 5 in cell C2.