1. 

SHALLOW

A. Artificial
B. Superficial
C. Foolish
D. Worthless

Answer: Option B

Explanation:

Meanings of the given words:

Shallow: (of the sea, a lake, or a river) Become less deep over time or in a particular place.

Artificial: Made or produced by human beings rather than occurring naturally, typically as a copy of something natural.

Superficial: Existing or occurring at or on the surface.

Foolish: (of a person or action) Lacking good sense or judgment; unwise.

Worthless: Having no real value or use.