Final answer:
The best way to combine the statements about honey's non-spoiling nature and its edibility from ancient tombs is using 'in fact' which adds supporting information.
Step-by-step explanation:
The sentence that best combines the provided statements is: Honey is the only food that does not spoil; in fact, honey found in the tombs of Egyptian pharaohs has been tasted by archaeologists and found edible. This option, labeled as B, correctly uses the conjunction 'in fact' to add information that supports and strengthens the first statement rather than contradicting or offering an alternative to it.