Final answer:
The billboard of Dr. Eckleburg symbolizes the moral decay of society, representing the lost spiritual values amidst materialistic pursuits in 'The Great Gatsby'. The correct answer is d) The moral decay of society.
Step-by-step explanation:
The iconic billboard of Dr. Eckleburg from F. Scott Fitzgerald's The Great Gatsby is a symbol that has been widely interpreted to reflect the moral decay of society during the Jazz Age.
The eyes of Dr. Eckleburg oversee a valley of ashes, representing the loss of spiritual values in pursuit of material wealth. This billboard is frequently seen as a manifestation of the eyes of God looking down upon and judging the wasteland that America had become, mirroring the emptiness and moral decay that characterized the era.
The Dr. Eckleburg billboard reveals the hollowness of human existence to the character. It serves as a symbol of the moral decay of society and the lack of true values in the lives of the people passing by.
The billboard represents a society that is spiritually destitute and disconnected from meaningful existence.