The Iota Corp Sued Araceli for Negligence

The Iota Corp sued Araceli for negligence.It claims that it suffered a loss as a result of her careless performance of a professional service.Which of the following statements is TRUE with respect to the issue of breach?

A) Araceli cannot possibly be held liable if she complied with a practice that was approved by her professional body.
B) Araceli cannot possibly be held liable if she did not realize that her services were careless when she performed them.
C) Araceli cannot possibly be held liable if she did her best,but her best was not good enough because she had received very poor training in school.
D) Araceli cannot possibly be held liable if Iota Corp should have realized that she was incompetent but did not take reasonable precautions to investigate the competence of Araceli.
E) Araceli may not be held liable for an error in judgment even if another professional in her position would have acted differently.