Refer to the following object:01 const cat = {02 firstName: ' Fancy ' ,03 lastName:...

fullName is defined as a getter :

get fullName() { ... }

Getters are accessed like properties , not like functions.

So:

cat.fullName; // " Fancy Whiskers "

No parentheses.

Why others are wrong:

A: cat.fullName() tries to call the returned string as a function.

B and C: These properties (get, function) do not exist; they are misinterpretations of syntax.