Final answer:
The synonym for 'rencontre' as used in the context is 'meeting' and its language of origin is French. The correct option is A.
Step-by-step explanation:
Using the context of the sentence provided, the synonym for the word rencontre in sentence 21 is meeting. The language of origin of the rencontre is French.
This is reflected in the way English has borrowed and adapted words from French; for instance, the English word 'meet' parallels the French concept of 'encounter' or rencontre. Moreover, such linguistic borrowing is not unique to the word rencontre;
English has assimilated a vast array of French words and concepts, due to historical interactions and the Norman Conquest, making the two languages intertwined in many respects.