Excluding Important Negative Information About a Candidate in a Recommendation

Excluding important negative information about a candidate in a recommendation letter

A) is expected-otherwise no one would be able to get a good job.
B) has led some employers to sue after hiring the candidate and discovering problems.
C) is the only way to prevent the candidate from suing you.
D) is okay,as long as you explain to the candidate that you are doing it.
E) is rarely done because most employers are honest.