The professor has a unique style of opening his lecture by........................... from ordinary examples.Ataking upBtaking offCtaking onDtaking inAnswer: B. taking off Read Explanation: "Taking off from" can mean beginning from a starting point, or using something as a launchpad.In this context, it implies the professor starts his lecture using ordinary examples as a base — and then perhaps moves into more complex ideas.It’s similar to the way an airplane “takes off from” the ground — the lecture is "taking off from" everyday things. Read more in App