Can someone please explain why the answer to this question is 4 possible orders? It seems to me that the options are as follows:
GHIJ
GHFJ
IHGJ
IHFJ
But then, couldn't we also have:
JFIH
JIFH
Does there being a chunk mean that whenever H and J are on the line then the have to be in a chunk of "H_J"?
Thanks!