C
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
The Himalayan Mountain chain is the youngest and tallest mountain chain on Earth. Which phenomenon contributed most to this area of continental buildup?

### Choices:
A. erosion of surrounding continental materials
B. eruptions of continental shield volcanoes
C. convergence of continental plates
D. subsidence of continental landmass

### Answer:
