Select the most stable intermediate

Which is the most stable intermediate?

Which of the following is the most stable intermediate obtained in chlorination of benzene using Cl_(2) and FeCl_(3) as catayst ?

In the following reaction most stable intermediate is {:(" "CH_(3)),(" |"),(CH_(3)-CHCH=CH_(2)+H_(2)Ooverset(H^(+))rarr):}

Name the first stable intermediate compound formed during calvin cycle.

Select the most stable structure of COCl_(2)