The correct answer is: The United States has many jobs where it is useful to know Spanish.
Reasoning: Learning Spanish can enhance job prospects, particularly in the United States, where a significant portion of the population speaks Spanish. Many employers value bilingual employees, especially in fields such as healthcare, education, customer service, and law enforcement, where communication with Spanish-speaking clients or patients is often necessary. This practical benefit of learning a language makes it a valuable skill in the job market.
While impressing friends or teaching family members may be enjoyable outcomes, they do not carry the same level of practical importance as the professional opportunities that come from being bilingual.