Harris, who owes Nathan $4,000, sells Bethany a used car for $5,000, payable in 30 days. Harris immediately tells Nathan that she doesn't have the money she owes him, but she is willing to give him her claim to Bethany's $5,000. Nathan agrees and gives up his claim against Harris for $4,000, and Harris notifies Bethany of the assignment. In this case, Bethany is best described as the
A. assignee.
B. assignor.
C. obligor.
D. obligee.

Scientists developed the first successful human cell culture in vitro (grown in a lab) in the 1950s by removing cancer cells from a woman. this concept has allowed modern scientists to successfully grow organs. which of the following answers  bestdetermines why there was success?   neurons send a signal to the cell to multiply. a large blood supply to the cell allows enough nutrients for growth. cells are the basic unit of life and thus can regenerate if in a controlled environment. cells cannot reproduce on their own, and the scientist manipulates them to grow.