Chhaganlal Jha, the CEO, was certain that someone in his leadership team was leaking information to Sudarshan Lal, well before Chhaganlal communicated.

Given the following options, how best should Chagganlal Jha respond to this situation?

The leakage of information should be prevented. Sudharsan Lal is supposed to know the proceedings of the company but it should be through a formal communication channel.

We can eliminate option B since it proposes an immature course of action. 
Option C can be eliminated as well since it proposes no step to curb the leak of information.
We can eliminate option D since it does not propose any course of action.
Option E can be eliminated as well since it spoils the relationship between him and the business heads. Also, it fails to find out the person responsible for leaking the information and even if someone is fired, there is no way to know whether Chhaganlal has fired the right person. 

Chaganlal should request Sudharsan to be patient till he gives out the information. This will ensure that Sudharsan will not have the need to depend on second-hand information and hence, will address the root cause of the issue. Therefore, option A is the right answer.