Answer: D) supporting an inference with evidence from the text.
Step-by-step explanation: Based on the phrases "I am wounded with iron" and "I have witnessed much fighting, Lena is inferring that the shield in the poem must be an old shield carried by a seasoned warrior. When she makes this statement in her analysis of the text, she is making an inference, but in order to supported she is using evidence from the text (in this case, two quotations about the discussed subject).