(1) When Benjamin Franklin was 22 years old, he opened a printing shop in Philadelphia. (2) There he published two popular periodicals. (3) They were the Philadelphia Gazette and Poor Richard’s. (4) The Philadelphia Gazette was a newspaper. (5) Poor Richard’s was an almanac. (6) Poor Richard’s was published once a year. (7) Poor Richard’s was a collection of miscellaneous information. (8) A feature of Poor Richard’s was advice about how to be happy. (9) The advice was also about how to be successful. (10) The advice was in the form of sayings, such as, “Early to bed and early to rise, makes a man healthy, wealthy, and wise.” Which is the most effective way to combine sentences 6 and 7?
a.Poor Richard’s, published once a year, and was a collection of miscellaneous information.
b.Poor Richard’s, a collection of miscellaneous information published once a year.
c.Poor Richard’s, which was published once a year, was a collection of miscellaneous information.

Answer: The most effective way of combining sentences 6 and 7 is C. Poor Richard's, which was published once a year, was a collection of miscellaneous information.

Explanation: The most effective way of combining sentences 6 and 7 is transforming one of them into a dependent clause. In that way, option C. is the correct answer because, besides being complete and grammatical, it integrates both sentences by turning sentence 6 into a dependent clause ("which was published once a year"). In contrast, option A. is ungrammatical: the usage of "and" is incorrect. Moreover, option B. is a sentence fragment.