archaeologists and historians study the past. only archaeologists work at dig sites. and or but so ← joining…

archaeologists and historians study the past. only archaeologists work at dig sites. and or but so ← joining words combine the sentences into one sentence. use one of the joining words.
Answer
Brief Explanations:
The first sentence says both archaeologists and historians study the past. The second sentence contrasts by saying only archaeologists work at dig sites. The word "but" is used to show this contrast.
Answer:
Archaeologists and historians study the past, but only archaeologists work at dig sites.