The answer would be C. The committee's bickering was seriously impeding any real progress.
impede would translate to preventing...such as preventing progress.
Both inventions were done by teenagers at their times.
Both inventions claimed to help the environment: Boyan Slat's machine would clean up trash floating in ocean. Duro-Aina Adebola, Akindele Abiola, Faleke Oluwatoyin, and Bello Eniola proposed power generation from urine that would not create carbon monoxide.
Unfortunately both inventions were also challenged by more established scientists and engineers.
C.Awrighto. Now make we talk business. We no be bad tief.
I'm not sure about the rest but I'm pretty sure images belongs to "transforms theme into pictures"
Um, if u want to buy that thingy then search it and buy it
