Robert Frost often uses traditional poem structure such as iambic pentameters or similar when writing poems even though his themes are modernist. He sometimes even wrote sonnets.
Seclude means to keep a somebody away from other human beings.
While, segregate means to separate. For example, in US History, African Americans were segregated from white Americans.
So seclude is used for one person, while segregate is used for groups of people or things.
5. C. Process
6. A. Process
7. A. Description