The Dental Hygienist Is Scheduled to Treat a Client Who

The dental hygienist is scheduled to treat a client who has received treatment for more than 2 years from the other dental hygienist in the office. The client is scheduled for a supportive periodontal therapy (maintenance) visit. After a review of the chart and assessment of the client's periodontal status, the dental hygienist observes that within the last 2 years the patient's periodontal status has progressively become poorer. The dental hygienist is concerned because the other dental hygienist and dentist could be subject to an allegation of negligence.
-In the scenario described, if a civil lawsuit were filed and a trial occurred, which of the following levels of proof would the jury or judge use in determining if the dental hygienist was guilty of negligence?

A) Substantial proof
B) Beyond a reasonable doubt
C) Preponderance of evidence
D) Proof of intent