66. What was the reason for Robert Hocken's cancellation of his talk at the conference?
(A) He had a scheduling conflict.
(B) He lost interest in the topic.
(C) He had a family emergency.
(D) The woman didn't mention it.

Question 65 through 67 Refer to the following conversation in table.Mr. Wong, I'm very sorry to inform you that Robert Hawkin has had to cancel his talk at our upcoming conference. I know this is very last minute, but I was wondering if you would be able to step in and give his presentation. I understand that this is very short notice, but I'm happy to help out if I can. I'm not sure if.I'm the most qualified person for the job, but I'll do my best. Thank you so much. I'm confident that the attendees will appreciate your insights. Your talk would be from 10:30 to 11:00 AM. I'll see what I can do. I'll send you a draft of my presentation as soon as it's ready.That would be great. Thank you again for your willingness to help out. You're welcome.#66 When was the reason for Robert Hawkins cancellation of his talk at the conference?