P178

In June of 1989, Princeton Township approved a developer’s plans to build 300 houses on a large portion of the 210-acre site of the Battle of Princeton, one of only eight Revolutionary War battlefields that had remained undeveloped.

(A) one of only eight Revolutionary War battlefields that had remained undeveloped

(B) one of eight of the only Revolutionary War battlefields that have remained undeveloped

(C) one of the only eight undeveloped Revolutionary War battlefields that remains

(D) only one of eight Revolutionary War battlefields to remain undeveloped（A）

不应该是one of the only...吗？  不用the 也可以？

觉得是时态不对