Preparation for the AP® exam, much like the work of historians, will involve . . . a
analyzing both primary and secondary sources
b
making judgments about connections among historical events
c
skills in developing and writing essays
d
all of the above

D. All of the above

Explanation:

Historians are those who study the histories of different subjects and how these things happened. This is usually done with the use of primary sources which include old writing and diaries from that period of study or the use of secondary sources such as modern books which are gotten from primary sources.

In preparation for the AP® exam, much like the work of historians, will involve analyzing both primary and secondary sources , making judgments about connections among historical events and skills in developing and writing essays to make it presentable.

answer; i do believe that the (14th)fourteenth amendment is the correct answer