I was surprised when my cell phone rang suddenly. I had given the phone number to my friends, so it shouldn't have been a surprise, but unfortunately it happened right in the middle of a meeting.
(c).
まあ落ち着いて下さい。私たちは何もあなたが犯人だと決めてかかっているわけじゃありませんから。
Please calm down. We certainly aren't accusing you of being the culprit.
(d).
甘えるのは何も日本人に限ったことではない。
It isn't just the Japanese who are psychologically dependent on others.
(e).
彼女の性格を変えようとしているようだけど、何もそこまでしなくたっていいんじゃないか。
You seem to be trying to change her personality, but why do you need to go that far?