औद्योगिक अवस्थिति सिद्धांत में, 'आइसोडापेन' (Isodapane) समान ______ वाले बिंदुओं को जोड़ने वाली रेखा को संदर्भित करता 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?