50. What is most likely the meaning of “adoptee”? (A) A person who is taken into another family and cared for as the family’s own child. (B) A person who takes other people away illegally and by force to demand some money from their family. (C) A medical doctor who performs surgery to repair parts of the body by the transfer of tissue. (D) A person who is employed to take care of a large building, such as a school.