再问补充250-82

Many of them chiseled from solid rock centuries ago, the mountainous regions of northrn Ethiopia are dotted with hundreds of monasteries.
(A) Many of them chiseled from solid rock centuries ago, the mountainous regions of northrn Ethiopia are dotted with hundreds of monasteries
(B) Chiseled from solid rock centuries ago, the mountainous regions of northern Ethiopia are doted with many hundreds of monasteries.
(C) Hundreds of monasteries, many of them chiseled from solid rock centuries ago, are dotting the mountainous regions of northrn Ethiopia
(D) The mountainous regions of northrn Ethiopia are dotted with hundreds of monasteries,  many of which are chiseled from solid rock centuries ago
(E) The mountainous regions of northrn Ethiopia are dotted with hundreds of monasteries, many of them chiseled from solid rock centuries ago.

答案是e，d的不足在什么地方？是不是用非限定从句表达降低了该部分的重要性？否则，非限定从句不如同位语简洁？看得一头雾水。请大家不吝赐教

时态不对

呵呵，实在是糊涂