What do you learn from these stage directions in The Governess?

[The faintest trace of a smile her lips]
A. Julia is suddenly very happy.
B. Julia knows something Mistress doesn't know.
C. Julia has made an important decision.
D. Julia is thinking about someone she loves.
Is the answer B?
Thank you

The answer is actually A, "Julia is suddenly very happy." Let me explain how to reach this conclusion.

Stage directions in a play provide instructions to the actors on how to perform certain actions or convey certain emotions. In this particular stage direction, "[The faintest trace of a smile her lips]," the mention of a smile on Julia's lips suggests that she is experiencing some level of happiness or contentment.

Option B, "Julia knows something Mistress doesn't know," is not directly supported by the stage direction. While it is possible that Julia may have some knowledge that the Mistress doesn't, the stage direction does not provide any specific indication of this.

Option C, "Julia has made an important decision," and option D, "Julia is thinking about someone she loves," are not supported by the stage direction either. There is no explicit reference to a decision or an indication of Julia thinking about someone she loves.

Therefore, the correct answer is A, "Julia is suddenly very happy," as implied by the mention of a smile on her lips in the stage direction.