The answer is "to show the need for a reference within an article".
you're being asked what is this so every alternative interprets as take after;
a) i'm fine thanks
b) it's under the table
c) that is a diskette
d) in the waste paper bin/recycle bin,
so the right answer would be The answer is "to show the need for a reference within an article".
Signal Phrase refers to an expression, statement, or even sentence which leads into a citation or measurement. These for the most part incorporate the speaker/creator's name and some support for utilizing him or her as a specialist in this unique situation; it might likewise help build up the setting for the quotation.
