Learning a second language offers numerous advantages. Firstly, it enhances cognitive abilities such as memory, problem-solving, and multitasking. These skills are beneficial not only for language learning (1) _. Additionally, learning a second language can broaden one's cultural understanding and appreciation. (2) _, a person can gain insights into the customs, traditions, and perspectives of other cultures. (3) _ more inclusive and open-minded. Moreover, mastering a second language can make their job prospects more promising. Employers often value bilingual or multilingual candidates because they can communicate (4) . Furthermore, learning a second language can make their travels more enjoyable. 

Question 4.

A. with a wider range of customers and colleagues.

B. of customers and colleagues with a wider range

C. a wider range with customers and of colleagues.

D. with customers and colleagues of a wider range