その答えは

that answer

→ 其の
phrase Rare #29,856
that answer は marks “that answer” as the topic of the sentence.
JA: その答えは合っています。
EN: That answer is correct.

その答えは“明らか”じゃない

That answer isn’t “obvious.”

— プラットフォーム (2019)

しかしその答えはすべて間違っていた。

However, all of those answers were wrong.

その答えは間違ってるよ。

That answer is wrong.

その答えは間違いと採点された。

That answer was marked wrong.

その答えは完全に間違っている。

That answer is completely wrong.