It’s definitely es dudoso que vengan en tren, trust me I’m a native speaker
15. escribir
16. correr
18. bailar
13. nadar
14. dibujar
5. centro comercial
10. manejar
17. estudiar
8. fútbol americano
The answer is A
The definition of polyglot is: knowing or using several languages.
That almost exactly matches the description. Hope this helps!