Which sentence from later in the text best helps develop the idea expressed in paragraph 2?

Responses

By targeting more than 3,000 genes of interest, the researchers could tease out the variations between humans and tortoises.

Their long, slow existence “has been key to their survival — from a time of overexploitation to a time of greater enlightenment and conservation,” she wrote in an email.

Lonesome George was a conservation icon, Caccone said, but a conservation icon that can also provide insights into human health and aging.

Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George’s long, disease-free life.

Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George’s long, disease-free life.

The sentence that best helps develop the idea expressed in paragraph 2 is: "Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George's long, disease-free life."