Question

gorillas live in the congo basin, a vast forest critical to combating climate change, but they face severe threats linked to global demand for electronics. smartphones and other devices rely on coltan, a rare and irreplaceable mineral found in eastern democratic republic of the congo, which is also the only home of the critically endangered grauers gorilla. most coltan mining in the region is illegal and controlled by armed groups, leading to habitat destruction, violence against local communities, and widespread hunting of wildlife to supply food for miners. this has caused grauers gorilla populations to decline by nearly 80 percent in just two decades. because coltan is recyclable, individuals can help reduce pressure on these forests by responsibly recycling old electronics through participating zoos or other services.
to help solve this problem, the expert in this passage suggests that consumers
○ recycle their old cell phones.
○ stop purchasing cell phones.
○ refuse to buy cell phones made with coltan.
○ avoid using cell phones made in the congo.

Explanation:

The passage states that coltan is recyclable, and consumers can reduce pressure on the gorillas' habitat by responsibly recycling old electronics like cell phones. The other options are not supported: stopping phone purchases is extreme, refusing coltan phones is not feasible as nearly all phones use it, and avoiding Congo-made phones is not mentioned as a solution.

Answer:

recycle their old cell phones.