15. How does the author regard Jazz?

Answer: A

Explanation:

Jazz is regarded as a significant and valued art form by the author.

The author describes jazz as "the art of expression set to music" and acknowledges it as "America's great contribution to music," indicating a deep appreciation and respect for the genre.

A) A real aficionado

This option is correct as it aligns with the author's positive descriptions and insights about jazz. The author emphasizes the importance and cultural significance of jazz, as well as its historical roots and evolution, suggesting a genuine passion for the genre.

B) Unable to determine

This option is incorrect because the text provides clear indications of the author's perspective on jazz. The author offers specific praises and historical context that demonstrate a well-formed opinion, contrary to any ambiguity.

C) Doesn't like it much

This option is incorrect as the author expresses admiration for jazz rather than disdain. The descriptions provided highlight jazz's cultural importance and artistic value, contradicting any notion of dislike.

D) Enjoys it occasionally

This option is also incorrect. While it suggests a measure of enjoyment, the author's statements reflect a deeper appreciation for jazz rather than a casual or occasional enjoyment. The language used indicates a strong, consistent admiration for the genre.

Conclusion

The correct answer, A, underscores the author's respect and enthusiasm for jazz as a vital part of American music history. All other options fail to capture the author's evident appreciation, as they either suggest uncertainty or imply a lack of strong positive feelings towards jazz, which the text clearly contradicts.