A、Backlighting. B、Flashbulbs. C、Soft focus. D、Time-lapse photography. C

W: Hi, George. Got any plans for tonight?
M: Not exactly. Do you have any suggestions?
W: In fact, I do. I just got two tickets to the opening of the exhibit of the reprints by Julia Margaret Cameron.  I should have mentioned it earlier, but I wasn’t sure if I’d even get the tickets.
M: An exhibit, huh? I like that. But I don’t know who Julia...
W: Julia Margaret Cameron! She was a renowned photographer who changed the aesthetics for photography.
M: What do you mean?
W: Well, her specialty was portraits and instead of just making a factual record of details like most photographers did, you know, just capturing what a person looks like in a dispassionate way. She, like a portrait painter, was interested in capturing her subject’s personality.
M: Interesting! How did she do that?
W: Well, she invented a number of techniques that affect the picture. One of those things was to blur images slightly by using a soft focus on the subject. That’s pretty common now.
M: Yeah. Who did she photograph?
W: Famous people of her days, like Alfred Lord Tennyson, Charles Darwin, just to name a few. Why not find out by yourself at the exhibition?
M: You’ve picked my curiosity. I am going to enjoy this.