The correct answer is: [A]: "vuestro" .
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Since: "vuestro"; can match number and gender;
(e.g. "vuestro" ; "vuestros"; "vuestra", "vuestras" ;
whereas the other answer choices given:
"mis", "mi", "su"; can only match number —(not 'gender').
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They're healthier physically and mentally...But, it could also be that they're more successful in school.
Answer:
What form of artistic expression did the Greeks develop?