They share an ethnicity with other people from the Dominican Republic .
Option B
Explanation:
People who have belief in their culture and practices will never let down their spirit of practicing it even though they are in migrated place. If they find an opportunity to mingle with same race then they find it comfortable to mingle with each other and practice their ritual and tradition.
From the above statement the family migrated from Dominican Republic to Miami having enjoying living with Hispanic people they feel lot about missing their homeland. So they are maintaining their relationship with people who migrated from the Dominican Republic to retain and practice their culture and heritage and taking forward to their next generation.