Why does lesotho totally rely on south africa for imports and exports?

a. other nations refuses to trade directly with lesotho.
b. lesotho is completely landlocked by south africa.
c. lesotho is a colony of south africa.
d. south africa is the only developed country in africa.

Lesotho totally relies on South Africa for imports and exports because of Option B) Lesotho is completely landlocked by South Africa.

Explanation:

Lesotho's economy relies heavily on farming and the country is economically integrated with South Africa. Formal employment is largely restricted to garment workers who are overwhelmingly female. Men tend to migrate to work in the mines in South Africa.  Another major employer in Lesotho is the government.  A lot of the farming and animal husbandry practiced is small scale and informal in Lesotho.

c. taught scientists many new things about the earth, but not other planets.

explanation: