Powers and functions of the Chairperson of the Board are laid down in:

It is crucial to differentiate between the powers of a collective body and those of its individual leadership. Section 15 is the correct answer because it specifically lays down the powers and functions attributed to the Chairperson of the Board. This section defines the authority and responsibilities vested in the individual leading the Board, distinct from the Board's overall mandate.

• Section 12 establishes the District Board.
• Section 13 provides for the committees of the District Board.
• Section 14 outlines the general powers and functions of the District Board as a whole, not specifically its Chairperson.