Which sentence does not contain any errors in comma usage?

a. the band played joyously, and the people danced.
b. she snorts loudly laughs uncontrollably, or turns red whenever i tell that silly joke.
c. you have several pairs of pants yet you always wear those jeans.
d. erica brought her raincoat but she forgot her umbrella.

Which type of formatting technique would you use to group information to make it easier for th audiance to understand

Asentence teacher gives the following speech. prepare a brief speech to accompany your science project. the speech will be presented to a faculty panel selected as judges. include a summary of your hypothesis, methods, and results. provide an explanation of any pictures or charts one of your poster. also share any complications you encountered during the science fair process. who is the intended audience for the teachers speech? a. young students. b. peers at the science fair. c. teacher evaluators. d. science professionals

What is the answer to this question