Karthik believes that giraffees have long necks because they have stretched their necks. Sukesh believes that giraffes have long necks because the ones with long necks were inherited.
Who thinks like Lamarck?

Explanation

To determine who thinks like Lamarck, we need to analyze the beliefs of Karthik and Sukesh regarding the long necks of giraffes.

### Step-by-Step Solution:

1. **Understanding Karthik's Belief**:
- Karthik believes that giraffes have long necks because they have stretched their necks. This implies that giraffes acquired long necks through their own efforts or adaptations during their lifetime.

2. **Understanding Sukesh's Belief**:
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