30. What was as remarkable as the development of the compact disc has been the use of the new technology to
revitalize, in better sound than was ever before possible, some of the classic recorded performances of the
pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as

OG的解释是：What was in A and The thing that was in B cause inconsistencies
in verb tense: the use of the new technology cannot logically be described by both the present perfect has
been and the past was.

不太理解这个解释，那么原句里的what从句应该是什么时态呢？请朋友们赐教

the use of the new technology cannot logically be described by both the present perfect has

been and the past was

was as remarkble as 和 has been 都是说the use of new tehconology

不合逻辑啊~~~

那要是这么说的话，what从句不是该和后面时态一致用现在完成时么？

我不理解是该用完成时还是因为它是对事物的描述用一般现在时呢？