Austen presents the idea that love must be above the desire for money and must be based on companionship and mutual care.
Explanation:
Austen presents Elizabeth as someone who has a vision of love based on something beneficial, happy and comfortable, without taking into account the economic conditions of the people involved in a romantic relationship. This is because Elizabeth is described as an intelligent woman, who does not devalue herself in the social environment and seeks a partner who values her, encourages her, has a high regard and respect for her, in addition to being someone with whom she can establish a partnership and mutual care. For her, this is more important than the economic condition that this partner can present.
"Pride and Prejudice" is a book written by Jane Austen that shows the birth of the relationship between Elizabeth and Mr. Darcy through breaking prejudices and stereotypes that they have among themselves.
"Complex" is used here to describe the group of apartments. So, it qualifies for describing a noun, like the definition of adjective. Let me know if you got it right.