What symbol did egyptian artists include in their works

 The symbol that Egyptian artists included in their works is aureus (royal cobra) symbolizing Lower Egypt. The correct answer is A. This sacred serpent was used to represent ultimate power in Egypt, so as to show someone's royalty, divinity,etc 

c. landscape orientation

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3