The story told by the teacher amused children in the class.

frightened
jolted
astonished
saddened

The correct answer is A. frightened.

The story told by the teacher amused children in the class. This means that the story was funny and made the children laugh. The other options are not correct because they do not describe the feeling of amusement.

Frightened means to be afraid or scared. Jolted means to be suddenly moved or shaken. Astonished means to be surprised or amazed. Saddened means to be made sad or unhappy.

In the story, the teacher told a funny joke that made the children laugh. The children were amused by the joke and enjoyed listening to it. The joke was not frightening, jolting, astonished, or saddened.