The State religion of ancient China

[rsarashi]

The State religion of ancient China, which came into existence at least as far back as the Han Dynasty (206 B.C. to A.D. 220) and perhaps as early as the western Zhou Dynasty (1050 B.C. to 771 B.C.), allowed only emperors performing the ritual worship of heaven, perceiving them as special links between the earthly and celestial realms.

A) only emperors performing the ritual worship of heaven, perceiving them as
B) only emperors to perform the ritual worship of heaven, with the perception of them being
C) the ritual worship of heaven to be performed only by emperors who were perceived as
D) the ritual worship of heaven, performed by emperors only, with the perception of them as
E) the ritual worship of heaven as performed by emperors only, who were perceived to be

OAC

[Vincen]

I know that options (A) and (B) are not correct. But, how can I determine that C is correct?