भारत के पहले परमाणु ऊर्जा रिएक्टरों, तारापुर परमाणु ऊर्जा स्टेशन (TAPS) इकाई 1 और 2 का रिएक्टर डिजाइन प्रकार क्या है?

With reference to the Prototype Fast Breeder Reactor, consider the following statements: I. Fast breeder reactors primarily rely on slow (thermal) neutrons moderated by heavy water to sustain the chain reaction. II. In breeder reactors, fertile isotopes such as Uranium-238 can be converted into fissile material through neutron absorption. III. Liquid sodium is used as a coolant in fast breeder reactors because it efficiently transfers heat without significantly slowing down neutrons. IV. Attainment of 'criticality' in a nuclear reactor implies that neutron production and neutron losses are in equilibrium, enabling a self-sustaining chain reaction. How many of the statements given above are correct?

With reference to the 'ANEEL' fuel, consider the following statements: I. It is designed for deployment in Pressurized Heavy Water Reactors (PHWRs) using a thorium-based fuel cycle. II. Thorium used in ANEEL fuel can independently sustain a nuclear fission chain reaction without requiring any fissile material. III. High-Assay Low-Enriched Uranium (HALEU) in the fuel acts as an initiating fissile component for the thorium fuel cycle. IV. Spent fuel generated from thorium-based reactor systems is entirely free from long-lived radioactive waste. How many of the statements given above are correct?