How do the subheadings in "Georgia O'Keeffe: Modernist Pioneer" help the reader better understand the text?

Look at the following merriam-webster online dictionary entry for the word cleave: cleave verb \klev transitive verb 1. to divide by or as if by a cutting blow : split 2: to separate into distinct parts and especially into groups having divergent views 3: to subject to chemical cleavage, a protein cleaved by an enzyme intransitive verb 1: to adhere firmly and closely or loyally and unwaveringly which definition is most likely intended in the following sentence? the axe was made of a metal strong enough to cleave even the strongest marble. o a. transitive definition 3 o b. intransitive definition 1 o c. transitive definition 1 o d. transitive definition 2

How does gatsby smile at nick? why is this important?

In tim o’brien’s chapter good form what does the narrator say is the happening truth