Which one is correct? A comma can be used to:

separate items in a series
separate an independent clause from a dependent clause
separate two dependent clauses
separate two nouns

Use commas to separate words and word groups in a simple series of three or more items. Example: My estate goes to my husband, son, daughter-in-law, and nephew. Note: When the last comma in a series comes before and or or (after daughter-in-law in the above example), it is known as the Oxford comma.

Use commas to separate words and word groups in a simple series of three or more items

explanation:

family is anyone that you care for and they equally care for you, family sticks together and everyone loves one another, whether they are blood or not anyone can be family. family composition is the makeup of a family, including the number of members, their ages, and their relationships to each other.

your answer is b. "with strong wording encouraging readers to take action."