निम्नलिखित में से किस नदी में विश्व की संभावित जल-विद्युत क्षमता अधिकतम है?

Consider the following statements regarding Quaternary Activities: 1. These activities involve the collection, production, and dissemination of information. 2. They are tied to resources, affected by the environment, or necessarily localized by the market. 3. These activities center on research and development. 4. Like some tertiary functions, quaternary activities cannot be outsourced. Select the correct answer using the codes given below:

Where are the world's major commercial fishing grounds predominantly located?