Mashaal Masha
The 2022 Nobel Prize in Chemistry was awarded to three pioneers in the field of click chemistry: two-time Nobel Laureate Barry Sharpless, who coined the term "click chemistry" in 1998; Carolyn Bertozzi, founder of the Bertozzi Group at ________ and Morten Meldal, a professor at the University of Copenhagen in Denmark. 
Which choice completes the text so that it conforms to the conventions of Standard English?
Difficulty: Medium
A: 

Stanford

B: 

Stanford,

C: 

Stanford:

D: 

Stanford;

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