Answer:
Lucia should consider the meaning of the Italian word solitudine, which has the same cognate.
Step-by-step explanation:
Understanding a language different from one's first language requires one to refer to a dictionary or even studying the foreign word alongside one's first language. In other words, the easiest way to understand a new, foreign word is to try to find the word in one's native language and get the meaning of it.
For Lucia, she can refer to the Italian word "solitudine" to know the English word "solitude". And when she understands that word, she will be able to know the meaning of the English word "solitude" and understand the passage she was reading.
Thus, the correct answer is the first option.