Which of the following esters cannot undergo Claisen self-condensation

Which one of the following esters cannot undergo Claisen self-condensation ?

Which one of the following esters cannot undergo Claisen self condensation reaction ?

Which one of the following esters cannot undergo self Claisen condensation?

Which one of the following esters cannot undergo self Claisen condensation ?

Which one of the following esters cannot undergo self Claisen condensation?

Write Claisen condensation.

Which of the following compound will undergo self - aldol condensation in the presence of cold dilute alkali?