Requires idiom .. Not as ...... but as. So eliminate A C and E
B. but as a process in which species remain stable for long periods and change dramatically
Looks fine.
D. but as a process in which species remained stable for long periods and changing dramatically
Remained and changing - Doesn't make sense.
B it is
B. but as a process in which species remain stable for long periods and change dramatically
Looks fine.
D. but as a process in which species remained stable for long periods and changing dramatically
Remained and changing - Doesn't make sense.
B it is
![FLO – Therapy at the Club – Pre-Single [iTunes Plus M4A]](http://is1-ssl.mzstatic.com/image/thumb/Music221/v4/a4/11/88/a41188ed-0f2e-e8d5-1163-d59e373cc58c/26UMGIM30046.rgb.jpg/208x208bb.webp)
