Which of the Following Statements Best Describes Time Lines

Which of the following statements best describes time lines?

A) A time line is not meaningful unless all cash flows occur annually.
B) Time lines are useful for visualizing complex problems prior to doing actual calculations.
C) Time lines cannot be constructed to deal with situations where some of the cash flows occur annually but others occur quarterly.
D) Time lines can be constructed only for annuities where the payments occur at the ends of the periods, i.e., for ordinary annuities.