if it is B, then from the top view your line will go all the way and from the front view as well. but in C , if you look at it from the top the line does not go all the way and the indentation is not as deep as A is.
if it is B, then from the top view your line will go all the way and from the front view as well. but in C , if you look at it from the top the line does not go all the way and the indentation is not as deep as A is.