If you are creating a line or bar graph and time is variable,

Barry is an excellent entertainment journalist. He does not get disheartened when celebrities do not return his calls, cancel interviews, or answer his e-mails

He diligently sticks to his task, interacts with celebrities, and writes interesting stories about their lives. Which must-have quality of a successful journalist does Barry possess? a) Persistence b) Reachability c) Capacity d) Flexibility

Because symbols are ____________________ their meanings are not clear-cut or fixed

Fill in the blank(s) with correct word