Context: Read the passage and look at the picture.
The Great Himalayas are a mountain range that stretches across northern India, Nepal, and neighboring countries. The mountain range began to form 40 to 50 million years ago as the Indo-Australian Plate collided with the Eurasian Plate. Because the plates are still colliding, the mountains in the Great Himalayas continue to rise. Each year, they grow over one centimeter taller.
Complete the sentence.
The Great Himalayas formed at a () boundary.
A. convergent
B. transform
C. divergent
Choose the right answer from the options and respond with its letter.

A