The Berber-speaking community is widely distributed across North Africa, encompassing a region stretching from the Atlantic Ocean to the Siwa Oasis in Egypt, and from the Mediterranean Sea to the Niger River, with a significant concentration in Algeria which makes option 2 the correct answer.

Option 1, Afghanistan, is incorrect because it is in South Asia where Pashto and Dari are the primarily spoken languages. Berber is not a recognized language there.

Option 3, Argentina, is in South America where Spanish is the official language and Berber is not a known language spoken there.

Option 4, Australia is also incorrect. The primary language in Australia is English and it has a significant Aboriginal and Torres Strait Islander languages, but Berber is not one of them.