Final answer:
The question regarding the seller of San Bernardino does not provide a clear context or accurate information based on the names and affiliations provided. It might be misphrased or misunderstood, as the names listed are not directly linked to the sale of San Bernardino or known historical events.
Step-by-step explanation:
The question 'Who is the seller of San Bernardino?' does not seem to correspond accurately to the provided information which includes names like Dan MacDonald, Amyaz Moledina, Craig Richardson, and Ralph Sonenshine, who are associated with different universities. The names given as options in the question, such as Craig Watkins, John Smith, Emily Johnson, and Michael Brown, are not directly linked to any known sale of San Bernardino and likely do not pertain to historical events or actual sales transactions. Therefore, the question might be misunderstood or misphrased.
If the question seeks to identify individuals with connections to San Bernardino related to academia or historical account, one might consider researching the histories of the mentioned universities or San Bernardino's historical records for accurate representation. However, as it stands, the question does not present enough context or accurate information to identify a seller of San Bernardino, leaving the question unanswerable based on the details provided.