Although I was allowed to use a dictionary, because of the time constraint there were parts I couldn't answer, and I felt depressed about my lack of English proficiency.
(d).
親しみやすさと、温かさと、飾り気の無さが、さやの絶対的な魅力である。
Friendliness, warmth and a lack of affectation are what makes Saya so absolutely charming.
(e).
最近の映画やドラマは、その内容の無さにがっかりさせられる。
I am disappointed with recent movies and dramas because of their lack of content.
(f).
調査によると日本の子供の自信の無さは世界一だそうである。
According to a survey, Japanese children are the least self-confident in the world.