Which of the following type of cement hydrates at relatively low rate and liberate less heat when compared to other mentioned types?

Correct option is A

Pozzolana cement generates less heat of hydration compared to ordinary Portland cement. Pozzolanic material is essentially siliceous and aluminous compound which in itself do not possess any Cementitious property but when finally grained in the presence of water it reacts calcium hydroxide release during the hydration of the cement.