Answer:

Introduction:
The given line, "But her hands were together, her lips moved without sound," is taken from the story "The Midwife's Apprentice" by Karen Cushman. It is a historical fiction novel set in medieval England.

Explanation:
In order to determine who "her" refers to in the given line, we need to analyze the context of the story and identify the characters mentioned.

Context:
The story revolves around a young girl named Alyce, who is an orphan and works as a midwife's apprentice. Throughout the story, Alyce faces various challenges and learns the skills necessary to become a skilled midwife.

Characters:
To determine who "her" refers to, we need to consider the female characters mentioned in the story:

a) Susan: Susan is Alyce's friend, and there is no indication in the story that she is the one being referred to in the given line.

b) Midwife: The midwife is Alyce's mentor, and there is no indication in the story that she is the one being referred to in the given line.

c) Mrs. Morgan's mother: Mrs. Morgan is a wealthy woman who is pregnant and requires the midwife's assistance. Her mother is mentioned briefly in the story, but there is no indication that she is the one being referred to in the given line.

d) Not clear from the story: This option can be eliminated as it is stated that the correct answer is one of the characters mentioned in the story.

Conclusion:
Based on the analysis of the characters and the context of the story, it can be concluded that "her" refers to Mrs. Morgan's mother. However, it is important to note that this conclusion is based on the given information and may be subject to interpretation.