Final answer:
Marie Antoinette married into the French family for political and economic reasons, strengthening the alliance between France and Austria and providing financial support to the French government.
Step-by-step explanation:
Marie Antoinette married into the French family for political and economic reasons. Her marriage to Louis XVI, the king of France, was meant to strengthen the alliance between France and Austria. Additionally, Marie Antoinette's dowry provided a significant financial boost to the French government, helping to alleviate some of France's national debt. Unfortunately, her marriage did not bring stability or popularity and she became a target of criticism during a time of economic hardship in France.