Which XML configuration correctly defines this field?

Your customer wants you to create a custom field in the Succession Data Model that allows employees to add their three letter ISO country code to their profile.

Which XML configuration correctly defines this field?
A . <hris-field id="custom-stringl" visibility="both" required="false" pii="3" allow- import="false" showTrailingZeros="false">
<label>ISO Code</label>
</hris-field>
B . <hris-field max-length=u3u id=..custom-string1.. visibility=..both.. required=..false.. allow import=..false.. showTrailingZeros=..false">
<label>ISO Code<llabel>
</hris-field>
C . <hris-field id="custom-longl" visibility="both" required="false" pii="3" allow- import="false” showTrailingZeros="false">
<label>ISO Code</label>
</hris-field>
D . <hris-field max-length="3" id="custom-longl" visibility="both" required="false” allow-import="false” showTrailingZeros="false">
<label>ISO Code</label>
</hris-field>