Cannon had . . . . . . . . unique qualities . . . . . . . . it was used widely in ancient times.

A. that, that

B. that, since

C. such, so

D. such, that

Answer: Option D

Solution(By Examveda Team)

We can use 'such' (as a determiner) before a noun phrase to add emphasis. We can use a that-clause after a noun phrase with 'such'.