According to the conversation above, who refuses the invitation?
Ali: Hello, this is Ali. Can I speak to Elif?
Elif: Speaking. How are you?
Ali: Fine, thanks. Would you like to come to my birthday party on Saturday?
Elif: I'd love to, but I have a family dinner that day. Sorry.
Ali: No problem. Maybe next time.
A)Ali (the one who invites, but a student might think the inviter refuses)
B)Elif (correct; she politely declines the invitation)
C)Ali's mother (not mentioned; a student might guess a parent is involved)
D)Elif's father (not mentioned; a student might confuse with Elif's family dinner)