Which of these is not an admirable value?

Which of these words means "impartial and just treatment or behaviour without favouritism or discrimination"?

Which of these are examples of gratitude?

Anas ibn Malik was a young boy when he had the honour of serving the Prophet s.a.w.

Narrated by Anas r.a himself: “I served the Prophet s.a.w for ten years, and he never said to me, ‘Uff’ (a minor harsh word denoting impatience) and never blamed me by saying, "Why did you do so or why didn't you do so?”

(Sahih Al-Bukhari)

This is an example of the Prophet's s.a.w ___________________.