To preserve document formatting and enable file sharing, you might choose to save your presentation as an Adobe PDF file, also known as a(n) ________ file

What is not true about an effective chart?

A) It is clear. B) It is easy to understand. C) It always contains more than one series. D) It is useful.

________ means that the identification code for a customer should not change each time new data are received.

A) Stability B) Reliability C) Standards based D) Sortable