<span>Aside from the fact that 1920s films were black and white and some movies in the 1930s had color, sound was a major difference.</span>
Answer:
Probably the first option
The answer is A. Imagine the 3 in 13 as a handcuff and the 1 as the key unlocking it
The US and Brits wouldn't have access to Russia to send supplies and Russia is cold so both countries would have to wait till spring to counter-attack.
