Option 1: Compel the Finance Minister to resign - This option suggests that if the Finance Minister fails to get the Annual Budget passed in the Lok Sabha, the Prime Minister would force the Finance Minister to resign. However, this is not an accurate explanation of what would actually happen in this scenario. The failure to pass the budget does not necessarily result in the resignation of the Finance Minister.

Option 2: Submit the resignation of his/her Cabinet - This is the correct answer. If the Finance Minister fails to get the Annual Budget passed in the Lok Sabha, it is expected that the Prime Minister would submit the resignation of his/her entire Cabinet. This is done as a sign of accountability and responsibility for the failure to pass the budget.

Option 3: Refer it to the joint session of both the Houses of Parliament - This option suggests that if the budget fails to pass in the Lok Sabha, the Prime Minister would refer it to a joint session of both the Houses of Parliament. However, this is not the expected course of action in this scenario.

Option 4: Form another Cabinet with different members - This option suggests that if the Finance Minister fails to pass the Annual Budget, the Prime Minister would form a new Cabinet with different members. However, this is not a likely response