Several actors and actresses stopped by to say hello.

Which is the adjective and which is the demonstrative adjective

Demonstrative adjective: By

Adjective: Several

Explanation: Several is describing the nouns, therefore it is a simple adjective. By is a demonstrative adjective because it determines the nouns by expressing its position as near or far

b - those executed came from every social and economic class

d.

the northwest territory became the most densely populated area in the u.s.