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.

the author is intending to draw attention to the plight of refugees, editorial and biography support this. both workpieces make the reader empathize with enrique as well as with the other young migrants from central america. the writer, however, is using a different approach to each text.

the editorial includes strong words to persuade readers. he is trying hard to convince readers in the us to change its refugee approach.

the biography relies on narrative techniques and figurative language which the writer uses wisely in the setting, characterization, and personification to educate readers on the topic.