In the seventh century B.C., the Roman alphabet was adapted from the Etruscan alphabet, which in turn had been adapted in the previous century from a western Greek alphabet, which itself had been adapted earlier in the same century from the Phoenician alphabet.
A. which itself had been adapted earlier
B. adapting itself earlier
C. itself being adapted earlier
D. having been earlier adapted itself
E. earlier itself having been adapted
Since the adaption event happened way back in the past, there is no place for present or present continuous or present perfect tense.
only A satisfies the criteria of past perfect tense.
Could some one justify the usage of HAD-since had was previously used for Etruscan Alphabet. The Greek alphabet was also adapted in the same period but a little early in the century ?-IS that why the usage of HAD okay?
The list of events timewise
1. In the sixth century(remember
previous century in sentence), Greek alphabet had been adapted earlier in the same century from the Phoenician alphabet.
2. In the sixth century, Etruscan alphabet had been adapted in the previous century from a western Greek alphabet
3. In the seventh century B.C., the Roman alphabet was adapted from the Etruscan alphabet