Final answer:
The Great Gatsby has plot holes and contrivances related to underexplored character motivations, unanswered questions about Gatsby's past, inconsistent timeline events, and lack of connection between major plot points.
Step-by-step explanation:
The Great Gatsby has several plot holes and contrivances. Some underexplored character motivations, like Gatsby's desire for Daisy, leave readers with unanswered questions. The inconsistent timeline events, such as Gatsby's background and his rise to wealth, create confusion. Additionally, there is a lack of connection between major plot points, like Gatsby's parties and his ultimate downfall.