Which carpal bone is not in the proximal row of carpal bones?

Sharp, tearing pain and a stiff, boardlike abdomen without vaginal bleeding in a pregnant patient indicate:

a. a central abruption of the placenta. c. an ectopic pregnancy. b. placenta previa. d. spontaneous abortion.

All of the following are sections of the spinal column EXCEPT the:

a. coccyx c. thoracic b. lumbar d. central