Several years ago. Theo and his sister, Rudy, purchased a tract of real property as joint tenants with right of survivorship (TWROS). Theo contributed $50,000 toward the $200,000 purchase price and Rudy contributed the remaining $150,000, Rudy died in the current year, and her will provided that all of her assets pass to her daughter, Vanessa. The real property was worth $1,000,000 on the date of Rudy's death. The value of Rudy's interest in the property includible in her gross estate is: a $500,000 b. $750,000 O C. $600,000 d. $800,000