Answer:
D) Jay Gatsby achieved his wealth in order to win over Daisy, his wealth was not enough to steal her away from Tom.
Step-by-step explanation:
A comma splice occurs when you join two independent clauses with a comma and no conjunction. For D, you need to add a conjunction (but), and the comma splice will be fixed:
Jay Gatsby achieved his wealth in order to win over Daisy, but his wealth was not enough to steal her away from Tom.