Answer:
A)Guion Bluford was the first African-American to break free of the bonds of gravity and fly in space.
Explanation:
An objective tone has to do with information that is relayed in a formal way which shows that the information is true, factual, and without bias, as personal feelings and sentiments are avoided. Personal pronouns are avoided.
The correct answer is A because objective tone is used to relay the information without bias and with factual accuracy.