Explanation:

Certainly! Let's break down the statements and options:

- I. Test of exercise of judicial functions under authority derived either immediately or mediately from the Sovereign

- This means the entity must have a legal mandate to perform judicial tasks.

- II. Test of definitive judgment

- This involves the ability to give conclusive decisions.

- III. Test of legal power to take evidence

- This relates to the ability to formally obtain evidence as part of a legal process.

- IV. Test of judicial power, or, being a part of the judiciary

- This refers to being an integral part of the judicial system.

- V. Test of exercise of powers otherwise exercisable by civil and revenue courts

- This speaks to performing functions typical of conventional courts.

Options:

- Option 1: I, II, and IV

- Option 2: II and V

- Option 3: III and V

- Option 4: All of them