विश्व की अग्रणी हीरा अन्वेषण और व्यापारिक कंपनी 'डी बियर्स' (De Beers) ऐतिहासिक रूप से किस देश से संबंधित है और इसका मुख्यालय कहाँ 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?