Given two iris codes from the same eye, what is the most probable HD between them?

Question $18$ options:

A$)$

$0\mathrm{.}25(25\%)$

B$)$

$0\mathrm{.}50(50\%)$

C$)$

$0\mathrm{.}75(75\%)$

D$)$

$1\mathrm{.}00(100\%)$