Answer:
A. Él cree que es el ombligo del mundo.
Explanation:
The statement "Mi hermano pequeño siempre necesita toda la atención de la familia" translates to "My little brother always needs all the family's attention." This suggests that the little brother is perceived as requiring or demanding a lot of attention from family members. Now, let's look at the options provided:A. "Él cree que es el ombligo del mundo." translates to "He thinks he is the center of the world." This option implies that the little brother might consider himself very important or the focus of everyone's attention, which aligns with the statement.B. "No es justo." translates to "It's not fair." This could be a reaction to the situation but does not logically follow the statement about the brother needing attention.C. "Lo echo de menos." translates to "I miss him." This option does not logically follow the statement as it expresses a feeling of missing someone, which is unrelated to the context of needing attention.D. "Por si las moscas." is an idiomatic expression that translates to "Just in case." This option does not logically follow the statement as it is generally used to indicate taking precautions, which is unrelated to the context provided. Given the context of the statement, the most logical follow-up is that the little brother might be seen as someone who considers himself very important or the focus of the family's attention.
