a simple question,very easy ,about the word 'of'

a very easy question The question was very easy,but _____ of the students could a A easy question about English a very easy question (_physical A English question.Very easy! A question about the contract of law the question of who or what the Me is,it is not a simple one I like the feeling of a person: a simple and easy!是什么意思? The question is( )( easy) of all. The question is very easy..a child can answer it.A.Rather B. a simple question 外语:a simple question