Answer:
B. Benjamin Franklin (1706–1790) was a great man.
Step-by-step explanation:
Parentheses is one of the punctuation marks we can use to enclose extra information in a sentence, like a comment, an explanation, a description, an example or a date, such as of birth and death, that briefly interrupt a sentence.
Since parentheses enclose extra information, if they were to be removed from a sentence, the sentence would still express a complete thought, that is to say, the meaning of the sentence would not be altered.
Option B is the sentence whose parentheses abides with all those rules: they enclose the date birth and date death of Benjamin Franklin and if we were to remove the parentheses, the sentence would still make sense.