The regime of Hosni Mubarak collapsed as a result of massive protest in which country?

Egypt

The correct answer is option (1) - Egypt

The regime of Hosni Mubarak collapsed in Egypt as a result of massive protests during the Arab Spring in 2011. The protests, centered in Tahrir Square in Cairo, demanded an end to Mubarak’s nearly 30-year rule, citing corruption, police brutality, and lack of political freedom. After 18 days of sustained protests, Mubarak resigned on February 11, 2011.