Dried glass clipping mixed into garden soil gradually decompose, provi

Dried glass clipping mixed into garden soil gradually decompose, providing nutrients for beneficial soil bacteria. This results in better-than-average plant growth. Yet mixing fresh glass clipping into garden soil usually causes poor-than-average plant growth.

Which of the following, if true, most helps to explain the difference in plant growth described above?

A) The number of beneficial soil bacteria increases whenever any kind of plant material is mixed into garden soil.
B) Nutrients released by dried glass clipping are immediately available to beneficial soil bacteria.
C) Some dried glass clipping retain nutrients originally derived from commercial lawn fertilizer, and thus provide additional enrichment to the soil.
D) Fresh glass clippings mixed into soil decompose rapidly, generating high levels of heat that kill beneficial soil bacteria.
E) When a mix of fresh and dried glass clippings is mixed into garden soil, the plant growth often decreases.