Wendy sued her friend for injuries she received as a passenger in the friend's car. On direct examination, Wendy testified that the friend had been speeding and ran a red light. On cross-examination, Wendy was asked whether she was under the influence of drugs at the time of the accident. Wendy invoked the privilege against self-incrimination. How should the court treat Wendy's claim of privilege? Group of answer choices Uphold it, because Wendy's credibility cannot be impeached by a crime for which she has not been convicted. Uphold it, because the privilege applies in both civil and criminal cases. Deny it, because Wendy waived the privilege by voluntarily testifying. Deny it, because evidence of Wendy's drug intoxication is essential to assessing the accuracy of her observations