For the past some time, Aarti had been observing some erratic body movement, unsteadiness and lack of Radha, who also used to complain of sever headache occasionally. Aarti suggested to her parents to get a medical check-up of Radha. The doctor thoroughly examined Radha and diagnosed that she has a brain tumour.
What, according to you, are the values displayed by Aarti?
How can radioisotepes help a doctor to diagnose brain tumour?

Explanation

### Step-by-Step Solution:

**Step 1: Identify the values displayed by Aarti.**
Aarti demonstrated several important values through her actions. She showed:
- **Care and Concern:** Aarti was observant of Radha's erratic movements and headaches, indicating her concern for her friend's well-being.
- **Responsibility:** By suggesting that Radha's parents take her for a medical check-up, Aarti took responsibility for her friend's health.
- **Empathy:** Aarti's actions reflect empathy, as she recognized that Radha was suffering and needed help.

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