Question

キム ユナ

（31）を埋める問題です。
答えは2です。1がダメな理由がよく分かりません。教えください🙇‍♂️

Current captive-breeding programs could give the birds a chance
of recovering. However, vultures breed extremely slowly, with
females producing only one egg each year. Conservationist Jemima
Parry-Jones says ( 31 ). She notes that the Indian government
has, in the past, given substantial faunding to tiger-conservation
programs. If the government contributed “a tiny percentage of what
they put into tiger conservation,” she says, vulture-conservation
programs “would be safe and guaranteed.” As it stands, however, the
vulture programs struggle to obtain support.

(31) 1 vultures should not be the focus
2 this is not the only problem
3 the programs have already succeeded
4 the birds should be relocated