Concept:The idiom “open a can of worms” means to start or reveal a situation that brings many unexpected problems and complications.
Explanation:Step 1: The phrase suggests disturbing something that was hidden or settled.
Step 2: Once opened, it creates a messy chain of difficult issues that are hard to control.
Step 3: Option B matches this meaning exactly.
Step 4: Other options focus on suspense, bad timing, or secrecy, which are not the core meaning of this idiom.
Answer:Correct option: B — To spark a situation that creates problems and complications.