Answer: Mrs. Quickly's replies to the Queen best show that she has the courage to be truthful. In the context of the question, Mrs. Quickly's replies to the Queen demonstrate her willingness to speak honestly, even in a potentially difficult or uncomfortable situation. This can be seen in her direct and straightforward responses to the Queen's inquiries. By choosing to be truthful, Mrs. Quickly displays her integrity and moral character.
For example, if Mrs. Quickly were to give evasive or dishonest answers to the Queen's questions, it would suggest that she lacks the courage to be truthful. However, by providing straightforward and honest replies, Mrs. Quickly shows that she is not afraid to speak her mind, even when it may not be what the Queen wants to hear.
In contrast, the other options listed are not supported by the information given in the question. There is no indication that Mrs. Quickly has doubts about her decisions, is concerned about being paid fairly, or is delighted to be known for her talent. Therefore, the most accurate and supported answer is that Mrs. Quickly has the courage to be truthful.