Which sentence contains a punctuation error?

a. you will have to be self-motivated to read so many books during your vacation.

b. three ex governors attended the conference, but only one gave a speech.

c. the mayor-elect led the parade down the main street of our town.

d. they are studying the mid-atlantic ocean floor and will publish their results next year.

Plz change it i can not change this sentences .

The tone of this speech could best be described as expressing a feeling of read the excerpt from president ronald reagan's speech on the night before the 1980 presidential election, i believe we can embark on a new age of reform in this country and an era of national renewal an era that will reorder the relationship between citizen and government, that will make government again responsive to people, that will revitalize the values of family, work, and neighborhood and that will testore our private and independent social fear hope anger pride

How could an audio recording most likely convey the characters emotions during the scene