There are two types of agricultural products A and B. A cannot grow in dry climates and B cannot grow in cold climates. In most parts of a country, either agricultural product A or agricultural product B can be grown. If the above statement is true, which of the following must be false? ? ['The climate is half dry and cold in this country.', 'The climate in most parts of the country is very cold.', 'This country does not grow agricultural products at all.', 'This country can only grow agricultural products A.']