<span>c.Poor Richard’s, which was published once a year, was a collection of miscellaneous information.
Grammatically, sentences A and B are incorrect. In sentence A the "and" makes the sentence incorrect. In sentence B "a collection of miscellaneous information" should be set off with commas but there's only a beginning comma. Also the sentence is missing a helping verb. C is the only one that is grammatically correct. </span>
