Which of the Following Is Not an Appropriate Technique for Palpating

Which of the following is not an appropriate technique for palpating the liver and spleen easily:

A) Place your dominant hand flat just below the rib cage and push up from the back with your opposite hand.
B) Have the child take a deep breath and tense his abdominal muscles while you push the hand on the abdomen up under the rib cage.
C) Hook your fingers up under the rib cage and palpate the lower edge of the liver or spleen.
D) Have the child bend his knees and place his feet flat on the table when you palpate.