The Subsidiary Alliance allowed Indian rulers to purchase security only by surrendering substantial autonomy.

Consider the following statements in support of the above assertion:

1. A permanent British force could be stationed within the allied state at its ruler’s expense.
2. A British resident was posted at the ruler’s court, while war and negotiations required Company consultation.
3. The ruler could not freely employ Europeans belonging to other nations.
4. British protection could make oppressive rulers more difficult for their subjects to remove.

How many of the above statements support the assertion?