In the article, the writer's diction A. Stresses the extreme importance of saying thank-you for gifts that come in any size or manner to a person. B. Expresses how effective conveying sincere gratitude and appreciation toward another person can be. C. Communicates the author's frustration and despair in how people choose to correspond with one another. D. Shows the contrast between her perception of handwritten thank-you notes and technological forms of thank-you.

B. Expresses how effective conveying sincere gratitude and appreciation toward another person can be.

Explanation:

In the article, the writer's diction is a comparison in the sincerity between how people express their gratitude for a service rendered. The sincerity in the way a person expresses gratitude is a measurement scale to see how really a person appreciates something. For example, the person who writes a personal handwritten note will be much more sincere than a person who sends an automated prompted email response which is just a rote method of communication.