Discussion
The greater sciatic notch in pelvis of a female human skeleton is :
Answer: A
In a female pelvis the greater sciatic notch is much wider than in males.
The female pelvis is adapted for childbirth, with a broad, shallow pelvic cavity. Its greater sciatic notch is wide and shallow, close to a right angle, while in males it is narrow and deep, about a fish-hook shape. It is one of the most reliable single features for sexing the hip bone, along with the subpubic angle and the preauricular sulcus.
So it is not narrower or equal in width in females, and although there is some overlap, it is a standard sex marker rather than 'very variable'.
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