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?