Soy flour is the best choice to send to starving children in Somalia because it has higher levels of important nutrients like carbohydrates, proteins, and fats compared to wheat flour. Soy flour provides long-term energy from its balanced nutrients, while wheat flour only offers short-term energy from its high carbohydrates. Though more expensive, soy flour is worth the cost due to its superior nutritional content that can help children survive longer periods without food.