What quality do caravaggio's david with the head of goliath and seurat's l'écho have in common?
a. the illusion of two dimensionality is striking in both works.
b. the illusion of light and shade is clear in both works.
c. their effectiveness is a result of polychromatic textural effects.
d. both are masterworks from the seventeenth century.

An eighth-grade teacher has asked you to present information to her students about how watching television can affect adolescents’ academics and behavior. what important information should you share with this audience? write an essay that will serve as the basis for the speech you will deliver to the students. include important details from the selection "television and adolescents" to support your discussion.