题目内容：
CThe trick in food photography is to show the food looking fresh， so many dishes have stand-ins， just as movie stars do． “When I get my lights and cameras set up， I remove the stand-in and put in the real thing，” explains Ray Webber， who photographs food for magazine advertisements． “Sometimes I have to brush the meat with its juices because it may have dried out a bit． A and when I‘m shooting （拍照） something like tomatoes， I always carry water to spray them with dew just before I shoot．”
Shooting food outdoors has special problems． “I‘m always worrying about flies or worms crawling up a glass，” Webber explains， “my worry is that someday a dog will come up from behind and run off with the food．” Once Webber was shooting a piece of cheese outdoors and needed something to make its color beautiful． Finally he found it： a weed with lovely blue flowers． When the shot appeared， several people were horrified-the weed was deadly nightshade！
（ ）Just before being photographed， some meats and vegetables are _______． A． fanned
B． dyed
C． frozen
D． made wet
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