In the Democratic Republic of Congo, recent conservation efforts have allowed for an improvement in the numbers of:​

A) ​orangutans
B) ​spider monkeys
C) ​lowland gorillas
D) ​gibbons

recent conservation efforts in the Democratic Republic of Congo have focused on protecting the lowland gorilla population, which has seen an increase in numbers as a result. This conservation work includes combating poaching and habitat destruction, as well as promoting sustainable tourism to provide alternative livelihoods for local communities. There have been no recent conservation efforts specifically focused on orangutans, spider monkeys, or gibbons in the Democratic Republic of Congo.