I'm pretty sure it is B, but if I'm wrong it would be D.
Definition: a preliminary or preparatory statement; an introduction.
US Preamble: The Preamble of the United States Constitution, beginning with the words "We the people ", is a brief introductory statement of the Constitution's fundamental purposes and guiding principles.
Hope this helps!
Answer:
The answer is letter A. For this task, working memory memory is MOST important.
Explanation:
For Jamaal to remember the phone numbers long enough to dial he has to make use of his working memory. The working memory is a short-term memory; the focus of attention is controlled and focused, in this case, in remembering momentaneously the phone numbers.
Workers aren't always available where they're needed. (APEX Class ;)