Identify the correct sentence.
a. civilization on the italian peninsula began growing as early as the eighth century bce, and the roman empire reached its territorial peak under emperor trajan, who died in 117 ce.
b. civilization on the italian peninsula began growing as early as the eighth century bce, and the roman empire reached its territorial peak under emperor trajan, who died in ce 117.
c. civilization on the italian peninsula began growing as early as the eighth century bc, and the roman empire reached its territorial peak under emperor trajan, who died in ce 117.
d. civilization on the italian peninsula began growing as early as the 8th century bce, and the roman empire reached its territorial peak under emperor trajan, who died in ce 117.