Which of the Following Statements Is True About Personal Selling

Which of the following statements is true about personal selling? ​

A) Personal selling provides marketers the least freedom to adjust their message to satisfy customers' information needs.
B) Personal selling is not necessary for expensive or high-risk products.
C) Personal selling is the most precise of all promotional methods.
D) A major advantage of personal selling is its cost.
E) Personal is not the most effective way to form relationships with customers.