You can _____ multiple worksheets to enter data or apply formatting to all of the worksheets at the same time.

MC Function__________ , which receives one required argument and two optional arguments, creates a stream object.

a) create. b) open. c) write. d) buffer.

In a recursive module, the part of the problem that can be solved with recursion is known as the __________ case.

Fill in the blank(s) with the appropriate word(s).