Where is the secondary center of origin of rye?

Correct option is A

What is a Center of Origin?
A center of origin is the geographical region where a crop was first domesticated and from where it diversified.
Primary center: Area of original domestication with high genetic diversity.
Secondary center: Region where the crop spread and developed additional diversity after domestication.
�� About Rye (Secale cereale):
Scientific Name: Secale cereale
Primary center of origin: Near East / Asia Minor (including parts of Turkey and Iran)
Secondary center of origin: Afghanistan
Rye spread to this region from its primary center.
Over time, genetic variation developed here due to adaptation to local environments and selection, qualifying it as a secondary center.