Rephrase question 19

Author: lydiahallie

README.md

@@ -602,7 +602,7 @@ getAge(21);
 
 #### Answer: C
 
-The spread operator (`...args`.) returns an array with arguments. An array is an object, so `typeof args` returns `"object"`
+The rest parameter (`...args`.) lets us "collect" all remaining arguments into an array. An array is an object, so `typeof args` returns `"object"`
 
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