At the time of his death, Norton was involved in the following: - Owned land in joint tenancy with Emily. The land is worth $600,000 and was purchased by Norton 15 years ogo for $150,000. - Owned land in a tenancy by the entirety with his wife Zhi. The land is worth $800,000 and was purchased by Norton five years ago for 5450,000 . * Owned land in an equal tenancy in common with Nosh. The land is worth $400,000 and was purchased by Norton four years ago for $300,000. . Owned city of Dayton bonds worth $500,000. What amount is included in Norton's gross estate? a. $2,100,000 b. 51.700 .000 c. $1,100,000 d. 5900,000