Identify the correct sequence of steps to be followed in the trading procedure at the stock exchange.
(A) Opening a Trading Account and Demat Account, placing an order, settlement of order, execution of order
(B) Settlement of order, opening a Trading Account and Demat Account, placing an order, execution of order
(C) Opening a Trading Account and Demat Account, placing an order, execution of order, settlement of order
(D) More than one of the above
(E) None of the above