Gisselle is a voluntary long-term of border traveler .
Option b
Explanation:
According to the above statement, Mr. Gisselle from the Republic of Dominica wants to migrate to the USA for getting a good job. His plan is to stay for a longer period and to enjoy a good standard of living in USA.
To fulfill his dream he has planned for a long stay in America. This stay in the United States of America is classified as Voluntary long-term travelers and the exact interpretation is immigrants who are border dwellers by choice and who stay for a longer time period.