Correct Answer: friendly

Solution : The correct answer is the third option.

Explanation: Cordial is used to describe a warm and friendly interaction or relationship. It suggests sincere and heartfelt friendliness. Friendly aligns closely with this meaning, indicating a kind and pleasant demeanour.

The meanings of the other options are as follows:

• Rude: This term refers to behaviour that is discourteous, impolite, or lacking in good manners.
• Aloof: This term describes a person who is emotionally or physically distant, reserved, or detached.
• Cold: This term can have various meanings, but in this context, it typically refers to a lack of warmth or friendliness.

Therefore, the correct synonym is friendly.