I think it is b I hope it help
The person above me is correct mark brainliest !!!!
Former South African President and civil rights defender Nelson Mandela dedicated his life to fighting for equality and ultimately helped overthrow South Africa's racist apartheid system. His accomplishments are now celebrated each year on July 18, International Nelson Mandela Day.
I don't see any options, but if there is a "clue" that states that using words like "Finally, next, now" and so on is how you can cell that an author is using chronological order, I'd choose that one.
I sincerely hoped that helped, have a good day.