Azure Migrate provides a centralized hub to assess and migrate to Azure on-premises servers, infrastructure, applications, and data. It provides the following:
- Unified migration platform: A single portal to start, run, and track your migration to Azure.
- Range of tools: A range of tools for assessment and migration. Azure Migrate tools include Azure Migrate: Discovery and assessment and Azure Migrate: Server Migration. Azure Migrate also integrates with other Azure services and tools, and with independent software vendor (ISV) offerings.
- Assessment and migration: In the Azure Migrate hub, you can assess and migrate:
Servers, databases, and web apps: Assess on-premises servers including web apps and SQL

Server instances and migrate them to Azure virtual machines or Azure VMware Solution (AVS) (Preview).
Databases: Assess on-premises databases and migrate them to Azure SQL Database or to

SQL Managed Instance.
Web applications: Assess on-premises web applications and migrate them to Azure App

Service.
Virtual desktops: Assess your on-premises virtual desktop infrastructure (VDI) and migrate it to

Windows Virtual Desktop in Azure.
Data: Migrate large amounts of data to Azure quickly and cost-effectively using Azure Data Box

products.
Based on this information let's analyze each option:
NYC-FS01 : Its role "Server" fall under above categories. Hence it can be accessed by using Azure migrate.
BOS-DB01 : Its role "server" fall under above categories. Hence it can be accessed by using Azure migrate.
Sea-CA01 : Its role "CA" does not fall under above categories. Hence it can not be accessed by using Azure migrate.
Hou-NW01 : Its role "DNS" does not fall under above categories. Hence it can not be accessed by using Azure migrate.
Sea-DC01 : Its role "DC" does not fall under above categories. Hence it can not be accessed by using Azure migrate.
Reference:
https://docs.microsoft.com/en-us/azure/migrate/migrate-services-overview