Considering that complementary goods have a negative cross of elasticity, it is correct to assume that the increase of the price or demand of one goods will result in an increase of price and demand of the other.
By that only, we can rule out answers A and B.
Since the products, as the name states, are complementary, there is no logic associated with the idea of consuming more of one good meaning less of the other (considering what was stated above), so it can't be the letter C.
It is D
"An increase in the demand for one will usually result in an increased demand for the other"
I’m pretty sure the 2nd one
The Nazi invasion of the Soviet Unions Operation Barbarossa on June 22nd 1941 was one of the biggest military operations in history. The invasion was not only military but also ideological and racial.
Hitler's policy of Lebensraum and his anti-semitism and general meant this was a war fought with no mercy. Losses were massive, an estimated 27 million Russians lost their lives, most of them civilians. As a consequence the pressure on the Soviet Union was immense as they were absorbing virtually on their own the power of the German military along with their Italian, Romanian and Hungarian allies.
