When writing an objective summary, what type of word (or phrase) comes at the beginning of each main idea?

Seurat's optical mixture created greater fill in the blank.

How is pop music related to popular music? what theme does pop music typically discuss in the lyrics? why do you think this theme relates so much to lots of different types of listeners? describe one pop song that uses this theme. what is disco? when did it develop, and what characteristics set it apart from other genres of popular music? what was the british invasion? which famous group was a part of this movement? what impact did the group have on pop music? what is a boy band? what are some characteristics of a boy band?

What is the title of the work below? a. the old sacristy b. the new sacristy c. tomb of popes d. pieta