In crystalline iodine the $\mathrm{I}-\mathrm{I}$ bond length is $267\mathrm{pm}$ and the shortest contact between iodine atoms of different molecules is $354\mathrm{pm}$. Taking the van der Waals radius as half the non-bonded contact distance, the extent to which the two van der Waals spheres of bonded atoms overlap along the bond (i.e. $2r_{\mathrm{vdW}}-d_{\mathrm{I}-\mathrm{I}}$) is:

1. A621$\mathrm{pm}$
2. B87$\mathrm{pm}$
3. C267$\mathrm{pm}$
4. D177$\mathrm{pm}$