The existence of the NIH shift was established by determining the major product obtained from rearrangement of

Question:

The existence of the NIH shift was established by determining the major product obtained from rearrangement of the following arene oxide, in which a hydrogen has been replaced by
a deuterium:

What would be the major product if the NIH shift did not occur? (Hint: Recall from Section 11.7 that a C-H bond is easier to break than a bond.)C - D).