Answer:
Option C
Step-by-step explanation:
Options:
A) relevant
B) reliable
C) complete
D) timely
E) understandable
F) verifiable
G) accessible
Your answer is option C or "complete." The person who is messaging Nikki did not complete the voicemail. She didn't tell Nikki where to meet for dinner or at what time she just said this evening which gives Nikki no information on when and where to meet this person for dinner. This is a incomplete voicemail which means one of the important characteristics of useful information missing from this voicemail is the complete voicemail for Nikki.
Hope this helps.