Answer:
The correct answer is:
<em><u>B) ¿Por qué te gusta vivir en Cuba?</u></em>
Explanation:
When you ask a person a question you should consider and take into account the correct use of the punctuation marks.
Open a question and close it with the question marks.
Also according to <em>La Real Academía de la Lengua Española</em> "<em>Porqué</em>" is used to give a reason for something for example:
<em>Yo no entiendo el </em><em>porqué</em><em> de tu actitud</em> / I do not understand why your attitude.
And "<em>Por qué</em>" is used to define direct or indirect interrogative or exclamatory phrases.
For example: <em>¿</em><em>Por qué</em><em> no viniste a la boda?</em> Why didn't you come to the wedding?