Ross Is Filling in a Personality Inventory in Connection with a Job

Ross is filling in a personality inventory in connection with a job application. The results are based on his self-report. Why is this a potential limitation?

A) Ross's responses might be influenced by his need to appear socially appropriate.
B) Self-report can be very time consuming.
C) Results based on self-report invariably lack validity.
D) Ross's responses may be overly objective.