GMAT Sentence Correction (SC) | Re: The particular design of muscles and bones in the neck and

The particular design of muscles and bones in the neck and limbs of the turtleallow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.

A.allow that itcan draw in its exposed partssuch that
B.allow it to draw in its exposed parts,and so
C.allows for it to draw in its exposed partsand that
D.allows that it can draw in its exposed parts,and so
E.allows it to draw in its exposed parts,so that

Looking at the splits ..

design (singular
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