<span>B. Harry Potter and the Sorcerer's Stone</span>
Answer:
To share experiences
Explanation:
In modern times, people usually write travel books and essays to share their experiences.
C. uses
Uses is the only word that words in this context. The advertisement isn't keeping anything. It hopefully creates a desire in the consumer to buy a product but it doesn't create a technique. It also does intend to convince buyers but it can't intend a technique either. Techniques are used so this is the most accurate and precise replacement for has.