|D.||heavy water moderated|
|A.||use Th-232 as fissile fuel.|
|B.||use fast neutrons for fission.|
|C.||use molten sodium as coolant.|
|D.||convert fertile material to fissile material.|
Explanation:use Th-232 as fissile fuel.
|A.||pressurised water is pumped into the core.|
|B.||coolant water is allowed to boil in the core of the reactor.|
|C.||fuel and the coolant are thoroughly mixed to form a homogeneous solution.|
|D.||coolant water, after being heated in the reactor core, generates steam in a boiler.|
Explanation:coolant water is allowed to boil in the core of the reactor.