Answer:
i don't and evidently i never heard of it
What is it? what does it do? What is it for?
A for the first
B for the second
Answer:
Observant
Explanation:
They are paired together in a sentence which means they must be related. They're also both adjectives. Countenance is like a facial expression, so it wouldn't make sense. Neither would gaze or noticed, which leaves observant as the answer. Hope this helped :)