Final answer:
The author's tone towards Hamilton's personality and character is positive.
Step-by-step explanation:
The author's choice of words, or diction, can provide insights into their tone towards a particular subject. In the case of Hamilton, let's analyze the adjectives and adverbs used in Chernow's description of him. Based on the description in paragraphs 4 and 5, the words that best communicate the author's tone toward Hamilton's personality and character are B) Positive. The author uses words like 'brilliant,' 'genius,' and 'extraordinary' to convey a positive and admiring tone towards Hamilton.