Answer:
most people do not know what happened to the people they love
Step-by-step explanation:
Based on the information provided within the question it seems that Zina Hasanovic is referred to as "one of the lucky ones" because she knows what happened to her husband while most people do not know what happened to the people they love. For many families living in war-zones, family and friends can easily disappear without a trace and most are left without answers as to what happened to them.