Question

read the excerpt from \keynote address.\
as an american whose ancestors came from japan, i have become accustomed to a question most recently asked by a very prominent businessman who was concerned about the threat of riots and the resultant loss in life and property.
in this excerpt, the author attempts to create an appeal to
emotion.
timeliness.
authority.
logic.

Explanation:

The author mentions the threat of riots and loss of life and property, which are emotional concerns.

Answer:

emotion.