Which of the following would the nurse expect to assess as presumptive signs of pregnancy

A. Amenorrhea and quickening.
B. A positive pregnancy test and a fetal outline.
C. Braxton Hicks contractions and Hegar’s sign.
D. Uterine enlargement and Chadwick’s sign.

本案如果进入审理，A区公安分局所做拘留决定是否合法，举证责任应该由哪一方来承担B区法院对该拘留决定应做出何种判决