quEstion 21 is BAsED on thE Following nEws. At thE EnD oF thE nEws itEm, you will BE givEn 5 sEConDs to AnswEr thE quEstion.
now, listEn to thE nEws.
A．AppliCAtions outnumBEr AvAilABility.
B．insuFFiCiEnt trAinED pErsonnEl.
C．unCErtAinty oF thE FuturE mArkEt.
D．lACk oF govErnmEnt support.