Which example shows McKenna analyzing details to draw a conclusion?

McKenna overheard her mother say on the phone, “We’ll see you in fifteen minutes, Mom.” Fifteen minutes later, the doorbell rang. McKenna wondered who was ringing the doorbell.
McKenna overheard her mother say on the phone, “We’ll see you in fifteen minutes, Mom.” Fifteen minutes later, the doorbell rang. When McKenna opened the door, she saw her grandmother.
McKenna overheard her mother say on the phone, “We’ll see you in fifteen minutes, Mom.” Fifteen minutes later, the doorbell rang. McKenna thought to herself, “My grandmother is here.”
McKenna overheard her mother say on the phone, “We’ll see you in fifteen minutes, Mom.” Fifteen minutes later, the doorbell rang. McKenna said to her mother, “I’ll get the door.”