Answer:
The correct answer is option a and option b.
Explanation:
The opening of a new American-owned factory in Algeria would tend to increase Algeria's GDP more than it increases Algeria's GNP.
This is because the GDP of a nation is the value of final goods and services produced in an economy in a year by both domestic citizens as well as foreign residents.
While GNP of a nation does not include the income earned by the foreign residents within the boundaries of a nation. So it is lower than GDP.