The company offered Gwendolyn a(n) for living in an unfamiliar country isolated from her family, dealing with a new culture and language, and adapting to new work habits and practices. She received this as a percentage of her base salary.

Hardship allowance.

Explanation:

The company offered Gwendolyn a hardship allowance for living in an unfamiliar country isolated from her family, dealing with a new culture and language, and adapting to new work habits and practices. She received this as a percentage of her base salary.

A hardship allowance can be defined as an extra amount of money being paid by an employer to an employee for working in difficult or tedious conditions. Also, when an employee works in an unfamiliar environment, potentially dangerous territory, and deal with risks in living in isolation from his or family members, they are entitled to a hardship allowance from their employer.

Hardship allowance is usually calculated as a percentage of an employee's monthly salary.

For instance, Gwendolyn works for an oil company and he's given an assignment to go work at a rig in a warzone, he is entitled to a hardship allowance from his employer.