I believe it is the last option... "Its political system cannot be easily changed.
A linguist studies language in a scientific way; so not just a certain language like Spanish, Mandarin or such, but how a language is written, communicated, it's forms, etc.
Answer:
<em>Castillon was the first major battle won through the extensive use of field artillery. The battle led to the English losing almost all their holdings in France, especially Gascony (Aquitaine), an English possession for the previous three centuries.</em>
Explanation:
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<em>I </em><em>hope</em><em> this</em><em> helps</em><em>!</em></h3>
