【单选题】

1 The youngest child of a prosperous Midwestern manufacturing family,Dorothy Reed was born in 1874 and educated at home by her grandmother. She graduated from SmithCollege and in 1896 entered Johns Hopkins Medical School.After receiving her M.D、degree, she worked at Johns Hopkins in the laboratories of two noted medical scientists. Reed’s research in pathology established conclusively that Hodgkin’s disease, until then thought to be a form of tuberculosis, was a distinct disorder characterized by a specific blood cell, which was named the Reed cell after her.

2 In 1906, her marriage toCharles Mendenhall took Reed away from the research laboratory. For ten years, she remained at home as the mother of young children before returning to professional life. She became a lecturer in HomeEconomics at the University of Wisconsin, where her principal concerns were collecting data about maternal and child health and preparing courses for new mothers.
3 Dorothy Reed Mendenhall’s career interests were reshaped by the requirements of marriage. Her passion for research was redirected to public health rather than laboratory science. Late in life, she concluded that she could not imagine life without her husband and sons, but she hoped for a future when marriage would not have to end a career of laboratory research.
Why did Reed stop working in the research laboratory
A、Marriage required that she remain at home.
B．She became more interested in public health.
C．Johns Hopkins did not like women doing research.
D．Her work on Hodgkin’s disease was complete