**Concept:** **The question tests on Probability**

**Solution:**

Probability = Favorable Outcomes / Total Outcomes

Favorable outcomes = Choosing a person who has not yet been called = 120 - 45 = 75

Total Outcomes = Choosing 1 out of 120 from the list = 120

The required probability = 75 / 120 = 5 / 8 = 0.625

**Option D**