Q. Kernig’s sign is….

(a) Hips and knees to flex when the neck is flexed
(b) Inability to straighten the leg when the hip is flexed to 90 degrees
(c) Palpation of right side of abdomen cause pain and guarding behaviour on left side of abdomen
(d) The examiner’s fingers are extended along the outside of the thighs and a click or a popping sensation may be felt if the joint is unstable