The conservation of genetic diversity in both crops and their wild relatives is important because:
A) due to artificial selection, modern crop cultivars have lost the ability to reproduce themselves.
B) genetically uniform agricultural populations may be highly susceptible to diseases and pests.
C) genetically uniform agricultural populations act as strong selecting agents for the evolution of novel diseases and pests.
D) domestication and selection for yield tends to reduce the genetic variation within crops over time.
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