Aregistered representative opens a new account for a customer by telephone and receives an order to sell 300 shares of abc at the market. under finra rules, the registered representative must do which of the following before executing the transaction? [a] have the stock in its position
[b] nothing, there are no restrictions on accepting the order.
[c] receive reasonable assurance from the customer that the stock will be delivered in good deliverable form within two business days from trade date.
[d] receive reasonable assurance from the customer that the stock will be delivered in good deliverable form within 10 business days from trade date.