I believe that’s it is D.
<span>The OWM supervised OES, war production Board, and other agencies. Hope this helps :)</span>
The three symbols from the Angolan flag include: a cog wheel, machete and a star. These represent the regional variation of worker's tools, and workers tools in similar combination were also seen on the flag of the Soviet Union. It's also a symbol of communist, which is the mian reason why both countries adopted this flag.
Havana, Cuba Have a great day