Which of the following statements based on the valence bond theory is not true about C₄H₇ with two consecutive double bonds?

• A. The geometry of the carbon connected to two double bonds is linear.
• B. The geometry of one of the carbons is bent.
• C. The pi bonds between the two carbons connected by a double bond are perpendicular to each other
• D. The geometry of one of the carbons is tetrahedral.

Answer: (B)