A
Highway engineering, bridge design, and transportation technology
B
Marine biotechnology and deep-sea mining
C
Rural sanitation and drinking water supply networks
D
Atomic energy and nuclear power generation
Correct answer: (a) Highway engineering, bridge design, and transportation technology
Explanation
Option A is correct because CSIR-Central Road Research Institute (CSIR-CRRI) specializes in highway engineering, bridge design, and transportation technology. Options B, C, and D mention sectors outside its core mandate.
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