Answer:
I think that Sofia should decide this for herself.
Explanation:
She is the only one who knows how much she can do. Her peers could give her their opinions, but these won't help her all that much. She is the expert on herself, and her work. She has to do this herself.
Rhyme and rhythm and anything that makes it catchy
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.