What tone does this passage convey?

Natasha had a great attitude, and her teachers and classmates noticed that she was always smiling. Even when she did not do as well as she had expected, Natasha told herself that she would do better next time. Her friends were impressed by how positive she was.

a pessimistic

b angry

c humorous

d optimistic

d optimistic

The tone of this passage is d) optimistic.

To determine the tone of a passage, you can look for keywords, emotional cues, and overall context. In this passage, the keywords "great attitude," "always smiling," and "positive" indicate a positive or optimistic tone. The mention of Natasha's friends being impressed further supports this interpretation. Therefore, the answer is d) optimistic.