If a Personality Inventory Scale Contained No "Reverse-Coded" or "Negatively-Keyed

If a personality inventory scale contained no "reverse-coded" or "negatively-keyed" items at all,what problem might that scale have?

A) Scores on the scale would partly reflect a tendency to agree with statements in general.
B) Scores on the scale would only be useful for measuring people with high levels of the trait.
C) Scores on the scale would have poor discriminant validity,because the items wouldn't measure anything that was unrelated to the trait.
D) Scores on the scale would be invalid,because people would be able to "fake" without getting caught.
E) None of the above;there would be no problem with such a scale.