Chronological order is the method of sequencing or putting certain times and dates in order of when the happened from first to last.
3 in 10 teen<span> American girls will get </span>pregnant<span> at least once before age 20. That's nearly 750,000 </span>teen pregnancies<span> every year. Parenthood is the leading reason that </span>teen<span> girls drop out of school. More than 50% of </span>teen<span> mothers never graduate from high school.</span>
Since the 'inciting incident' is the one which starts all the problems in a literary work, the answer is B, 'establishment of the central conflict followed by the conflict increasing and a climax'.
Too narrow because it gives no information about the crises.