What does discreet surveillance mean

An unexpected celebration part a how does the author's description of ava at her not-so-sweet-sixteen party affect the text? a. it creates humor by explaining an assumption that was made based on a misunderstanding. b. it builds tension by relating the conflict between what is wanted and what is happening. c. it builds suspense by focusing on the sensory experiences leading to a predictable outcome. d. it creates confusion by shifting the focus of the narrative from one character to another. part b which details from the passage provide the best evidence for the answer to part a? a. those that highlight ava’s emotional state b. those that describe the actor in the show c. those that address ava’s physical sensations d. those that depict the carnival setting of the show