What is the value of the variable result after these lines of code are executed? >>> a = 12
>>> b = 0
>>> c = 2
>>> result = a * b - b / c

6

0

20

It has no value since an error occurred.

Janice usually works on a particular workbook that contains all business related data. she decides to keep a backup of all the data in a separate workbook. she opens a new workbook to transfer the data. which option should she use to copy all the data from one workbook to another workbook?