The sentence reads: "It also emphasises preservation of genetic diversity..." The term "diversity" fits best because it refers to the variety of genes within species, which is crucial for the health and sustainability of ecosystems and wildlife.
"Conflict" would imply a disagreement or struggle, which does not fit the context of genetic preservation.
"Focus" refers to concentration on something, but it doesn't convey the idea of variety within genetic material.
"Rejection" refers to the act of dismissing something, which is not related to genetic preservation.