Which of the following could replace 'considerate' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

Always try to be transparent and straightforward. Remember, all sorts of martyrs are not hailed. According to Dr. Emma Watson, a psychologist, burning out silently over petty issues can raise the blood pressure and result in unnecessary problems. It is good to be considerate yet firm. Don't take ill-treatment lying down.  While unnecessary aggressive and hostile behaviour should be avoided, becoming unduly submissive and fearful is not correct. We need to strike a balance between the two. There is no need to adopt an aggressive conduct. Make it a point to stay cool and remember that your objective is to resolve an issue and not to raise a hue and cry. If you look forward to something positive, try to be that in the first place. If you are open, considerate and ready to listen to others, then why shouldn't they reciprocate with equal warmth?