Answer: The painting of a person is called B. retrato.
Explanation: The question provided can be translated as "What is the painting of a person called?". The word that answers this question is "portrait" as a portrait is a painting that depicts a person, mainly his/her face and a part of his/her body. "Retrato" is "portrait" in Spanish. In that way, the correct option is B. "retrato". In contrast, "bodegón" is "still life", "paisaje" is landscape and "bosquejo" is sketch.