Very recently, in which of the following countries have lakhs of people either suffered from severe famine/acute malnutrition or died due to starvation caused by war/ethnic conflicts?

1. The question asks to identify countries where, around 2017-2018 (very recently), large populations faced severe famine/acute malnutrition or death due to starvation caused by war/ethnic conflicts. 2. Option (A) Angola and Zambia: While facing economic and food security challenges, they were not experiencing conflict-driven famine on the scale described. 3. Option (B) Morocco and Tunisia: These countries were relatively stable and not facing such crises. 4. Option (C) Venezuela and Colombia: Venezuela faced severe economic crisis and malnutrition, but not primarily driven by war/ethnic conflict in the same way as Yemen/South Sudan. Colombia had its own issues but not the described level of famine. 5. Option (D) Yemen and South Sudan: In the period leading up to 2018, both countries were consistently highlighted by international agencies for catastrophic humanitarian crises. Yemen's civil war led to widespread famine conditions. South Sudan's civil war and ethnic conflict also resulted in severe famine and malnutrition in several regions. This option accurately reflects the situation described in the question.