General Medicine General db5b6276 A 30-year-old multiparous female complains of a painless ulcer in vulva. She has several sexual partners. Her previous pregnancy has ended in a still birth at 24 weeks. What is the first test, which should be performed in this case: A ELISA for HIV B VDRL Test C Culture of scraping from the ulcer D Election microscopy of scraping from the ulcer