CALEB (SALESPERSON): "Madam, this vacuum cleaner's high speed motor works very fast with less effort and saves about 20-minutes in cleaning time. We will also give you immediate delivery and easy installment payment scheme." BUYER: "Yes, I like the benefits of time saving, less effort of pushing, easy installment and immediate delivery." CALEB: "Okay, now is there anything that you want us to improve?" BUYER: "Yes, I want more choices to select from more models." What technique is this? Select one: a. Minor point close b. T-account close c. Assumptive close d. Summary of benefit close