“占着茅坑不拉屎”用英文怎么说?

1.a 正确.
该短语源于《伊索预言》,故事梗概：一匹马和一条牛正在马厩里吃草.这时,一条狗闯进来了,它十分霸道地要马和牛都走开.马和牛温和地对它说：可是你是不吃草的呀!这条狗却蛮不讲理地说：我虽不吃草,可是我不吃的东西也不能让你们白吃!这样,这条狗霸占了盛满稻草的马槽,却赶走了以草为生的马和牛.而它自己呢,也只能看着稻草而不能吃.这就是汉语的“占着茅坑不拉屎”.
《美国韦氏大词典》将其解释为：The dog who would not allow a horse or ox to eat the hay in a manger,even though he himself did not want it.并将该片语引申为：A persom who selfishly withholds from others something that he himself can not use or does not need.
2.英文中无 b 和 c 的说法.