N2
のももっともだ
May well, Have or has good reason for, No wonder, … Is only natural
リゼット
が
言う
の
も
もっとも
だ
。
What Rizetto says is only natural.
兄貴
が
言う
の
も
もっとも
だ
と
思う
。
I think what my big brother says is perfectly reasonable.
N2
のも当然だ
It is only natural that, It is no wonder
N3
わけだ
For that reason, No wonder, As you'd expect, Naturally, Thus, This is why
N2
だけあって
Is only natural, …Being the case, Because, As might be expected
N2
だけに
As might be expected, Because, All the more because, It's only natural
N1
とあって
Since...(it is no wonder that), Because...(it is no wonder that), Due to...(it is no wonder that)