Step 1: Understanding the Concept:
The Indian Council of Agricultural Research (ICAR) manages several national research institutes dedicated to biotechnology, crop sciences, and animal husbandry across India.
Step 2: Detailed Explanation:
The Indian Institute of Agricultural Biotechnology (IIAB) is a premier national research institute established under the ICAR.
It was founded to conduct multi-disciplinary research in agricultural biotechnology, genomics, molecular breeding, and transgenics to address challenges in crops, horticulture, livestock, and fisheries.
The main campus of the Indian Institute of Agricultural Biotechnology is located in Garhkhatanga, Ranchi, Jharkhand.
Therefore, Ranchi is the correct geographical location.
Step 3: Final Answer:
Hence, the correct option is (A).