Pick up the correct statement from the following:

A

High percentage of $$(C_3 S)$$ and low percentage of $$(C_2 S)$$ cause rapid hardening

B

High percentage of $$(C_3 S)$$ and low percentage of $$(C_2 S)$$ make the cement less
resistive to chemical attack

C

Low percentage of $$(C_3 S)$$ and high percentage of $$(C_2 S)$$ contribute to slow
hardening

D

All option are correct