Answer :
The theme represented by the teacher's kindness in the story is that 'An act of kindness can make someone happy.' So, option B is correct.
The theme found in the passage about Anna, a young aspiring painter whose parents could not afford art supplies, and her art teacher Mrs. Ruffalo's generous offer to sponsor her, is best expressed by the statement:
'An act of kindness can make someone happy.'
This theme is represented by Mrs. Ruffalo's willingness to help Anna continue her artistic pursuits despite financial constraints. This act not only contributes to Anna's happiness and satisfaction but also showcases the impact of generosity and support in nurturing individual talents.