The word that should not be capitalized in the given sentence is 'Online'.
What is the error in the sentence?
The given sentence:
According to Brittanica Online, it was the third American President who said, "That government is best which governs the least."
Use of correct language involves correct use of grammar. There are certain unsaid rules which have to be followed and certain criteria that we need to fulfil. No word starts with the capital letter in the middle of a sentence except proper nouns.
Therefore, the word 'Online' should not be capitalized in the sentence.
Hence, the correct answer is option (B).
Learn more about Proper nouns on https://brainly.com/question/19374997
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