What should you do now?

A pregnant woman is choking on a piece of candy. She is conscious, but cannot cough or speak. 
A. Lower her to the floor, check for and remove an object if it is visible at the back of the throat.
B. Give chest thrusts until the object is dislodged or she becomes unconscious.
C. Encourage her to continue coughing to try to dislodge the object.
D. Give abdominal thrusts until the object is dislodged or she becomes unconscious.