Churning is the prohibited practice of excessive trading in a customer account primarily to generate commissions or other compensation for the broker-dealer or representative. It is especially associated with discretionary accounts because the representative has authority to trade and may abuse that authority by placing transactions that are unsuitable in frequency, size, or purpose. Choice B is correct. Kiting generally refers to fraudulent activity involving the misuse of funds or checks and is not the term for excessive securities trading. Freeriding occurs when a customer buys and sells securities without paying for them, typically in violation of cash account payment rules. Front running involves trading ahead of a customer order or block transaction to benefit from anticipated price movement. The SIE outline identifies excessive trading as a type of market manipulation or prohibited activity and also covers discretionary accounts, suitability, best interest obligations, and commissions. The technical elements of churning are control of the account, excessive trading in light of the customer’s profile, and intent to generate compensation rather than serve the customer’s investment interest. Reference: Understanding Trading, Customer Accounts and Prohibited Activities; Market Manipulation; Discretionary Accounts; Suitability.