Question 33: Which of the following data is appropriate for a middle school student?

We see that if you choose answer A, the weight of 400g = 0.4kg is too small for a human, so answer A is wrong, if you choose answer C, the height of 400mm = 0.4m is not suitable for middle school students, choose answer option D is also wrong because 400cm bust is too big for a human, so answer B’s weight 400N means about 40kg weight is the correct answer.