Question

belied cargo plane but a needle - nosed single - pilot jet. jonas, looking around anxiously, had seen others - adults as well as children - stop what they were doing and wait, confused, for an explanation of the frightening event.
then all of the citizens had been ordered to go into the nearest building and stay there. immediately, the rasping voice through the speakers had said. leave your bicycles where they are.
instantly, obediently, jonas had dropped his bike on its side on the path behind his familys dwelling. he had run indoors and stayed there, alone. his parents were both at work, and his little sister, lily, was at the childcare center where she spent her after - school hours.
looking through the front window, he had seen no people: none of the busy afternoon crew of street cleaners, landscape workers, and food delivery people who usually populated the community at that time of day. he saw only the abandoned bikes here and there on their sides; an upturned wheel on one was still revolving slowly.
he had been frightened then. the sense of his own community silent, waiting, had made his stomach churn. he had trembled.
but it had been nothing. within minutes the speakers had crackled again, and the voice, reassuring now and less urgent, had explained that a pilot - in - training had misread his navigational instructions and made a wrong turn. desperately the pilot had been trying to make his way back before his error was noticed.
from lois lowry, the giver. copyright 1993 by lois lowry
look at the text in bold. how does it affect the passages meaning or tone?
it creates a sense of uncertainty and fear.
it creates a sense of wonder and excitement.
it creates a sense of anger and dread.
it creates a sense of calmness and serenity.

Explanation:

The text in bold describes a situation where people are ordered to go into buildings immediately. Words like "IMMEDIATELY" and the context of a strange plane (not a usual cargo plane) create a tense and urgent atmosphere. People stop what they're doing, confused and waiting for an explanation of a "frightening event". This all contributes to a sense of uncertainty (not knowing what's happening) and fear (due to the urgency and the unknown nature of the event).

Answer:

It creates a sense of uncertainty and fear.