The correct answer is All of the Above
Explanation: International trade is an exchange of goods and services between people or companies from different countries. How countries can sell their products to their territory (export) or can use products from other countries (import).
B. Mao's focus on rural steel production led to widespread famine and starvation.
Due to the immense focus of the rural population on producing steel, and environmental disasters (Great Chinese Famine, 1959-1961), the resulting consequence was failure to produce enough food to sustain the population (leading to widespread famine and starvation).