In fact I just found another question on GMAT verbal review - https://gmatclub.com/forum/a-march-2000 ... 81147.html
The OE for this is that both HAD or HAS could have been right in option B, depending on when the Question was made and on whether the fact is true today also or not.
GMATNinja Sir can both "had" and "have" be right
...
The OE for this is that both HAD or HAS could have been right in option B, depending on when the Question was made and on whether the fact is true today also or not.
GMATNinja Sir can both "had" and "have" be right
...


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