Step 1: Understanding the Question:
This question tests knowledge of the history of agricultural research institutions in India.
Step 2: Detailed Explanation:
The Imperial Agricultural Research Institute (IARI) was established in 1912 at Pusa, Bihar.
It was later renamed the Indian Agricultural Research Institute (IARI) after independence.
In 1934, the institute was shifted to New Delhi due to the devastating Bihar earthquake.
IARI is also known as the "Pusa Institute" and is the premier agricultural research institution in India.
Thus, 1912 is the correct year of establishment.
Step 3: Final Answer:
Thus, IARI was established in 1912, which corresponds to option (A).
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